Fixed integer check.

It wasn;t even finished, how could I push this.

Author: petervanderdoes

gitflow-functions

@@ -185,8 +185,10 @@ gitflow_validInt() {
 	local _return
 
 	[ -n "$1" ] || return 1
-	case ${_flags_int_} in
+	_int="$1"
+	case "${_int}" in
 		*[!0-9]*) _return=1 ;;
 		*) _return=0 ;;
-	  esac
+	esac
+	return $_return
 }