check return values of setmntent() (could return NULL when fstab or mtab where not there).
check return values of setmntent() (could return NULL
when fstab or mtab where not there).


git-svn-id: 40dd595c6684d839db675001a64203a1457e7319@8834 67ed7778-7388-44ab-90cf-0a291f65f57c

gphoto/libgphoto2,jbreeden/libgphoto2,msmeissn/libgphoto2,msmeissn/libgphoto2,jbreeden/libgphoto2,gphoto/libgphoto2,gphoto/libgphoto2,jbreeden/libgphoto2,thusoy/libgphoto2,msmeissn/libgphoto2,jbreeden/libgphoto2,thusoy/libgphoto2,gphoto/libgphoto2,msmeissn/libgphoto2,jbreeden/libgphoto2,msmeissn/libgphoto2,gphoto/libgphoto2,thusoy/libgphoto2,gphoto/libgphoto2,thusoy/libgphoto2,thusoy/libgphoto2