Cleanup gotags -help text and README

Author: jstemmer

README.md

@@ -16,11 +16,10 @@ gotags is a [ctags][]-compatible tag generator for [Go][].
 	gotags [options] file(s)
 
 	-L="": source file names are read from the specified file.
-	-R=false: recurse into directories in the file list
-	-silent=false: do not produce any output on error
-	-sort=true: sort tags
-	-tree=false: print syntax tree (debugging)
-	-v=false: print version
+	-R=false: recurse into directories in the file list.
+	-silent=false: do not produce any output on error.
+	-sort=true: sort tags.
+	-v=false: print version.
 
 ## Vim [Tagbar][] configuration
 
@@ -54,7 +53,7 @@ Put the following configuration in your vimrc:
 		\ 'ctagsargs' : '-sort -silent'
 	\ }
 
-### Screenshot
+### Vim+Tagbar Screenshot
 ![vim Tagbar gotags](http://stemmertech.com/images/gotags-1.0.0-screenshot.png)
 
 [ctags]: http://ctags.sourceforge.net

main.go

@@ -29,11 +29,11 @@ var (
 
 // Initialize flags.
 func init() {
-	flag.BoolVar(&printVersion, "v", false, "print version")
+	flag.BoolVar(&printVersion, "v", false, "print version.")
 	flag.StringVar(&inputFile, "L", "", "source file names are read from the specified file.")
-	flag.BoolVar(&recurse, "R", false, "recurse into directories in the file list")
-	flag.BoolVar(&sortOutput, "sort", true, "sort tags")
-	flag.BoolVar(&silent, "silent", false, "do not produce any output on error")
+	flag.BoolVar(&recurse, "R", false, "recurse into directories in the file list.")
+	flag.BoolVar(&sortOutput, "sort", true, "sort tags.")
+	flag.BoolVar(&silent, "silent", false, "do not produce any output on error.")
 
 	flag.Usage = func() {
 		fmt.Fprintf(os.Stderr, "gotags version %s\n\n", Version)