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, 5 insertions, 5 deletions

diff --git a/src/net/textproto/reader.go b/src/net/textproto/reader.go
index 37221cf3ad..e07d1d62e0 100644
--- a/src/net/textproto/reader.go
+++ b/src/net/textproto/reader.go
@@ -71,7 +71,7 @@ func (r *Reader) readLineSlice() ([]byte, error) {
 // ReadContinuedLine reads a possibly continued line from r,
 // eliding the final trailing ASCII white space.
 // Lines after the first are considered continuations if they
-// begin with a space or tab character.  In the returned data,
+// begin with a space or tab character. In the returned data,
 // continuation lines are separated from the previous line
 // only by a single space: the newline and leading white space
 // are removed.
@@ -204,7 +204,7 @@ func parseCodeLine(line string, expectCode int) (code int, continued bool, messa
 // ReadCodeLine reads a response code line of the form
 //	code message
 // where code is a three-digit status code and the message
-// extends to the rest of the line.  An example of such a line is:
+// extends to the rest of the line. An example of such a line is:
 //	220 plan9.bell-labs.com ESMTP
 //
 // If the prefix of the status does not match the digits in expectCode,
@@ -366,7 +366,7 @@ func (d *dotReader) Read(b []byte) (n int, err error) {
 				d.state = stateBeginLine
 				break
 			}
-			// Not part of \r\n.  Emit saved \r
+			// Not part of \r\n. Emit saved \r
 			br.UnreadByte()
 			c = '\r'
 			d.state = stateData
@@ -552,9 +552,9 @@ func (r *Reader) upcomingHeaderNewlines() (n int) {
 }
 
 // CanonicalMIMEHeaderKey returns the canonical format of the
-// MIME header key s.  The canonicalization converts the first
+// MIME header key s. The canonicalization converts the first
 // letter and any letter following a hyphen to upper case;
-// the rest are converted to lowercase.  For example, the
+// the rest are converted to lowercase. For example, the
 // canonical key for "accept-encoding" is "Accept-Encoding".
 // MIME header keys are assumed to be ASCII only.
 // If s contains a space or invalid header field bytes, it is