[git commit branch/1_28_stable] umount: ignore -c

[Denys Vlasenko]

commit: https://git.busybox.net/busybox/commit/?id=4e71661e3aabd04ae5bf6078bbc38f4940a2349c
branch: https://git.busybox.net/busybox/commit/?id=refs/heads/1_28_stable

"-c, --no-canonicalize: Do not canonicalize paths."

As busybox doesn't canonicalize paths in the first place it is safe to ignore
this option.

See https://github.com/systemd/systemd/issues/7786

Signed-off-by: Shawn Landden <slandden at gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>
---
 util-linux/umount.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/util-linux/umount.c b/util-linux/umount.c
index a6405dfcc..b45cd8a6b 100644
--- a/util-linux/umount.c
+++ b/util-linux/umount.c
@@ -81,8 +81,8 @@ static struct mntent *getmntent_r(FILE* stream, struct mntent* result,
 }
 #endif
 
-/* ignored: -v -t -i */
-#define OPTION_STRING           "fldnra" "vt:i"
+/* ignored: -c -v -t -i */
+#define OPTION_STRING           "fldnra" "cvt:i"
 #define OPT_FORCE               (1 << 0) // Same as MNT_FORCE
 #define OPT_LAZY                (1 << 1) // Same as MNT_DETACH
 #define OPT_FREELOOP            (1 << 2)