Get rid of a warning that gets printed out when the console is configured without any logger levels

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@268203 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/logger.c

@@ -147,7 +147,10 @@ static int make_components(char *s, int lineno)
 	char *stringp = s;
 
 	while ((w = strsep(&stringp, ","))) {
-		w = ast_skip_blanks(w);
+		w = ast_strip(w);
+		if (ast_strlen_zero(w)) {
+			continue;
+		}
 		if (!strcasecmp(w, "error")) 
 			res |= (1 << __LOG_ERROR);
 		else if (!strcasecmp(w, "warning"))