make parse_line_column() more consistent: don't return an error on

strings like "3," since we don't return one on strings like ",3"


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2596 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

src/utils.c

@@ -118,7 +118,9 @@ bool parse_line_column(const char *str, int *line, ssize_t *column)
     comma = strchr(str, ',');
 
     if (comma != NULL && column != NULL) {
-	if (!parse_num(&str[comma - str + 1], column))
+	const char *str_line = str + (comma - str + 1);
+
+	if (str_line[0] != '\0' && !parse_num(str_line, column))
 	    retval = FALSE;
     }