libext2fs: Provide prototype for ext2fs_symlink()

New function ext2fs_symlink() doesn't have a prototype in ext2fs.h and
thus debugfs compilation gives warning:

debugfs.c:2219:2: warning: implicit declaration of function 'ext2fs_symlink'

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
1 file changed