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>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/debug/dwarf/typeunit.go b/src/debug/dwarf/typeunit.go
index 4032cd4745..ed42547386 100644
--- a/src/debug/dwarf/typeunit.go
+++ b/src/debug/dwarf/typeunit.go
@@ -9,11 +9,11 @@ import (
 	"strconv"
 )
 
-// Parse the type units stored in a DWARF4 .debug_types section.  Each
+// Parse the type units stored in a DWARF4 .debug_types section. Each
 // type unit defines a single primary type and an 8-byte signature.
 // Other sections may then use formRefSig8 to refer to the type.
 
-// The typeUnit format is a single type with a signature.  It holds
+// The typeUnit format is a single type with a signature. It holds
 // the same data as a compilation unit.
 type typeUnit struct {
 	unit