configure: fix --enable-relative-symlink

The configure option --enable-relative-symlinks was incorrectly
specified in configure.in, as --enable-symlink-relative-symlinks.  Fix
the configure script so that --enable-relative-symlinks works, as well
as previous incorrect command line option.  We will keep the older,
incorrect --enable-symlink-relative-symlinks for at least two years
before removing it.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2 files changed