make getmntent_r discard long lines when it returns error, not seek back
[musl] / src / ldso /
drwxr-xr-x   ..
-rw-r--r-- 132 dlsym.c
-rw-r--r-- 17513 dynlink.c
drwxr-xr-x - i386
-rw-r--r-- 105 start.c
drwxr-xr-x - x86_64