libmount: add missing const

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/libmount/src/tab_parse.c b/libmount/src/tab_parse.c
index 6ecd53f7263a70ff8ec7109d2b0bc79393cd46ae..8793f5e6ac5626609c1503c7b61b08b51b719810 100644 (file)
--- a/libmount/src/tab_parse.c
+++ b/libmount/src/tab_parse.c
@@ -383,7 +383,7 @@ static int mnt_parse_swaps_line(struct libmnt_fs *fs, const char *s)
  *
  * mountinfo: "<number> <number> ... "
  */
-static int guess_table_format(char *line)
+static int guess_table_format(const char *line)
 {
        unsigned int a, b;