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, 6 insertions, 6 deletions

diff --git a/src/flag/flag.go b/src/flag/flag.go
index 3abc80e9c6..6acbbcd321 100644
--- a/src/flag/flag.go
+++ b/src/flag/flag.go
@@ -261,7 +261,7 @@ const (
 	PanicOnError                         // Call panic with a descriptive error.
 )
 
-// A FlagSet represents a set of defined flags.  The zero value of a FlagSet
+// A FlagSet represents a set of defined flags. The zero value of a FlagSet
 // has no name and has ContinueOnError error handling.
 type FlagSet struct {
 	// Usage is the function called when an error occurs while parsing flags.
@@ -324,7 +324,7 @@ func (f *FlagSet) VisitAll(fn func(*Flag)) {
 }
 
 // VisitAll visits the command-line flags in lexicographical order, calling
-// fn for each.  It visits all flags, even those not set.
+// fn for each. It visits all flags, even those not set.
 func VisitAll(fn func(*Flag)) {
 	CommandLine.VisitAll(fn)
 }
@@ -338,7 +338,7 @@ func (f *FlagSet) Visit(fn func(*Flag)) {
 }
 
 // Visit visits the command-line flags in lexicographical order, calling fn
-// for each.  It visits only those flags that have been set.
+// for each. It visits only those flags that have been set.
 func Visit(fn func(*Flag)) {
 	CommandLine.Visit(fn)
 }
@@ -514,7 +514,7 @@ func (f *FlagSet) NFlag() int { return len(f.actual) }
 // NFlag returns the number of command-line flags that have been set.
 func NFlag() int { return len(CommandLine.actual) }
 
-// Arg returns the i'th argument.  Arg(0) is the first remaining argument
+// Arg returns the i'th argument. Arg(0) is the first remaining argument
 // after flags have been processed. Arg returns an empty string if the
 // requested element does not exist.
 func (f *FlagSet) Arg(i int) string {
@@ -524,7 +524,7 @@ func (f *FlagSet) Arg(i int) string {
 	return f.args[i]
 }
 
-// Arg returns the i'th command-line argument.  Arg(0) is the first remaining argument
+// Arg returns the i'th command-line argument. Arg(0) is the first remaining argument
 // after flags have been processed. Arg returns an empty string if the
 // requested element does not exist.
 func Arg(i int) string {
@@ -890,7 +890,7 @@ func (f *FlagSet) parseOne() (bool, error) {
 }
 
 // Parse parses flag definitions from the argument list, which should not
-// include the command name.  Must be called after all flags in the FlagSet
+// include the command name. Must be called after all flags in the FlagSet
 // are defined and before flags are accessed by the program.
 // The return value will be ErrHelp if -help or -h were set but not defined.
 func (f *FlagSet) Parse(arguments []string) error {