modprobe: emit "can't open 'modules.dep': (errno)" instead of "module not found"

*: s/can't open %s/can't open '%s'/, it's better to use same string.

function                                             old     new   delta
do_modprobe                                          588     601     +13
config_file_action                                   339     345      +6
modprobe_main                                        565     570      +5
unable_to_open                                        14      16      +2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/0 up/down: 26/0)               Total: 26 bytes
   text    data     bss     dec     hex filename
 816800     476    7892  825168   c9750 busybox_old
 816812     476    7892  825180   c975c busybox_unstripped

1 files changed, 2 insertions, 2 deletions

diff --git a/shell/ash.c b/shell/ash.c
index 3abca75fe..b33351674 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -4540,7 +4540,7 @@ forkchild(struct job *jp, /*union node *n,*/ int mode)
                 if (jp->nprocs == 0) {
                         close(0);
                         if (open(bb_dev_null, O_RDONLY) != 0)
-                                ash_msg_and_raise_error("can't open %s", bb_dev_null);
+                                ash_msg_and_raise_error("can't open '%s'", bb_dev_null);
                 }
         }
         if (!oldlvl) {
@@ -9573,7 +9573,7 @@ setinputfile(const char *fname, int flags)
         if (fd < 0) {
                 if (flags & INPUT_NOFILE_OK)
                         goto out;
-                ash_msg_and_raise_error("can't open %s", fname);
+                ash_msg_and_raise_error("can't open '%s'", fname);
         }
         if (fd < 10) {
                 fd2 = copyfd(fd, 10);