>> rename directory flag

> add it to man page

main.go

@@ -192,7 +192,7 @@ func parseCLIArgs(args []string) (context, error) {
 	}
 	for index < len(args) {
 		switch arg := args[index]; arg {
-		case "-d", "--directory":
+		case "-r", "--recurse":
 			index++
 			result.RecurseDirs = append(result.RecurseDirs, args[index])
 		case "-n", "--dry-run":
@@ -233,7 +233,7 @@ func printHelp() {
    -s,--strategy
    -h,--help
    -v,--version
-   -d,--directory DIRECTORY
+   -r,--recurse DIRECTORY
 
 `);
 }

man.md

@@ -24,6 +24,10 @@ Change what happens to invalid characters. Choices are:
 - "represent": replace each character with "\_Unum_", where "num" is the 
   Unicode Code Point of the character.
 
+### -r, \-\-recurse DIRECTORY
+Recursively search DIRECTORY for files/directories to rename. Search 
+includes DIRECTORY itself.
+
 ### -n, \-\-dry-run
 Causes Owl to just print a representation of what would be done without 
 actually renaming any files.