all: single space after period.

The tree's pretty inconsistent about single space vs double space
after a period in documentation. Make it consistently a single space,
per earlier decisions. This means contributors won't be confused by
misleading precedence.

This CL doesn't use go/doc to parse. It only addresses // comments.
It was generated with:

$ perl -i -npe 's,^(\s*// .+[a-z]\.)  +([A-Z]),$1 $2,' $(git grep -l -E '^\s*//(.+\.)  +([A-Z])')
$ go test go/doc -update

Change-Id: Iccdb99c37c797ef1f804a94b22ba5ee4b500c4f7
Reviewed-on: https://go-review.googlesource.com/20022
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Dave Day <djd@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

6 files changed, 11 insertions, 11 deletions

diff --git a/src/cmd/pprof/internal/profile/encode.go b/src/cmd/pprof/internal/profile/encode.go
index 9e669980a1..6b879a84ac 100644
--- a/src/cmd/pprof/internal/profile/encode.go
+++ b/src/cmd/pprof/internal/profile/encode.go
@@ -15,7 +15,7 @@ func (p *Profile) decoder() []decoder {
 }
 
 // preEncode populates the unexported fields to be used by encode
-// (with suffix X) from the corresponding exported fields.  The
+// (with suffix X) from the corresponding exported fields. The
 // exported fields are cleared up to facilitate testing.
 func (p *Profile) preEncode() {
 	strings := make(map[string]int)
diff --git a/src/cmd/pprof/internal/profile/legacy_profile.go b/src/cmd/pprof/internal/profile/legacy_profile.go
index c7c047a64b..e1f24c4c6d 100644
--- a/src/cmd/pprof/internal/profile/legacy_profile.go
+++ b/src/cmd/pprof/internal/profile/legacy_profile.go
@@ -291,7 +291,7 @@ func ParseTracebacks(b []byte) (*Profile, error) {
 		if s, addrs := extractHexAddresses(l); len(s) > 0 {
 			for _, addr := range addrs {
 				// Addresses from stack traces point to the next instruction after
-				// each call.  Adjust by -1 to land somewhere on the actual call
+				// each call. Adjust by -1 to land somewhere on the actual call
 				// (except for the leaf, which is not a call).
 				if len(sloc) > 0 {
 					addr--
@@ -427,7 +427,7 @@ func cpuProfile(b []byte, period int64, parse func(b []byte) (uint64, []byte)) (
 //   3rd word -- 0
 //
 // Addresses from stack traces may point to the next instruction after
-// each call.  Optionally adjust by -1 to land somewhere on the actual
+// each call. Optionally adjust by -1 to land somewhere on the actual
 // call (except for the leaf, which is not a call).
 func parseCPUSamples(b []byte, parse func(b []byte) (uint64, []byte), adjust bool, p *Profile) ([]byte, map[uint64]*Location, error) {
 	locs := make(map[uint64]*Location)
@@ -570,7 +570,7 @@ func parseHeap(b []byte) (p *Profile, err error) {
 		var sloc []*Location
 		for i, addr := range addrs {
 			// Addresses from stack traces point to the next instruction after
-			// each call.  Adjust by -1 to land somewhere on the actual call
+			// each call. Adjust by -1 to land somewhere on the actual call
 			// (except for the leaf, which is not a call).
 			if i > 0 {
 				addr--
@@ -778,7 +778,7 @@ func parseContention(b []byte) (p *Profile, err error) {
 		var sloc []*Location
 		for i, addr := range addrs {
 			// Addresses from stack traces point to the next instruction after
-			// each call.  Adjust by -1 to land somewhere on the actual call
+			// each call. Adjust by -1 to land somewhere on the actual call
 			// (except for the leaf, which is not a call).
 			if i > 0 {
 				addr--
@@ -921,7 +921,7 @@ func parseThread(b []byte) (*Profile, error) {
 		var sloc []*Location
 		for i, addr := range addrs {
 			// Addresses from stack traces point to the next instruction after
-			// each call.  Adjust by -1 to land somewhere on the actual call
+			// each call. Adjust by -1 to land somewhere on the actual call
 			// (except for the leaf, which is not a call).
 			if i > 0 {
 				addr--
diff --git a/src/cmd/pprof/internal/profile/profile.go b/src/cmd/pprof/internal/profile/profile.go
index 6d175bf32a..28e713d7be 100644
--- a/src/cmd/pprof/internal/profile/profile.go
+++ b/src/cmd/pprof/internal/profile/profile.go
@@ -114,7 +114,7 @@ type Function struct {
 	filenameX   int64
 }
 
-// Parse parses a profile and checks for its validity.  The input
+// Parse parses a profile and checks for its validity. The input
 // may be a gzip-compressed encoded protobuf or one of many legacy
 // profile formats which may be unsupported in the future.
 func Parse(r io.Reader) (*Profile, error) {
@@ -221,7 +221,7 @@ func (p *Profile) Write(w io.Writer) error {
 	return err
 }
 
-// CheckValid tests whether the profile is valid.  Checks include, but are
+// CheckValid tests whether the profile is valid. Checks include, but are
 // not limited to:
 //   - len(Profile.Sample[n].value) == len(Profile.value_unit)
 //   - Sample.id has a corresponding Profile.Location
diff --git a/src/cmd/pprof/internal/profile/prune.go b/src/cmd/pprof/internal/profile/prune.go
index abc898cb37..1924fada7a 100644
--- a/src/cmd/pprof/internal/profile/prune.go
+++ b/src/cmd/pprof/internal/profile/prune.go
@@ -12,7 +12,7 @@ import (
 )
 
 // Prune removes all nodes beneath a node matching dropRx, and not
-// matching keepRx.  If the root node of a Sample matches, the sample
+// matching keepRx. If the root node of a Sample matches, the sample
 // will have an empty stack.
 func (p *Profile) Prune(dropRx, keepRx *regexp.Regexp) {
 	prune := make(map[uint64]bool)
diff --git a/src/cmd/pprof/internal/report/report.go b/src/cmd/pprof/internal/report/report.go
index b6694f559f..b2b07b24f9 100644
--- a/src/cmd/pprof/internal/report/report.go
+++ b/src/cmd/pprof/internal/report/report.go
@@ -390,7 +390,7 @@ func printCallgrind(w io.Writer, rpt *Report) error {
 
 // callgrindName implements the callgrind naming compression scheme.
 // For names not previously seen returns "(N) name", where N is a
-// unique index.  For names previously seen returns "(N)" where N is
+// unique index. For names previously seen returns "(N)" where N is
 // the index returned the first time.
 func callgrindName(names map[string]int, name string) string {
 	if name == "" {
diff --git a/src/cmd/pprof/internal/symbolz/symbolz.go b/src/cmd/pprof/internal/symbolz/symbolz.go
index c81e522208..15b3b6df26 100644
--- a/src/cmd/pprof/internal/symbolz/symbolz.go
+++ b/src/cmd/pprof/internal/symbolz/symbolz.go
@@ -24,7 +24,7 @@ var (
 
 // Symbolize symbolizes profile p by parsing data returned by a
 // symbolz handler. syms receives the symbolz query (hex addresses
-// separated by '+') and returns the symbolz output in a string.  It
+// separated by '+') and returns the symbolz output in a string. It
 // symbolizes all locations based on their addresses, regardless of
 // mapping.
 func Symbolize(source string, syms func(string, string) ([]byte, error), p *profile.Profile) error {