e2fsprogs: fix configure help text for quota

It's --enable-quota, not --enable-libquota.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
diff --git a/configure.in b/configure.in
index 72da1a2..2b44d1e 100644
--- a/configure.in
+++ b/configure.in
@@ -568,7 +568,7 @@
 PKG_PROG_PKG_CONFIG
 AH_TEMPLATE([CONFIG_QUOTA], [Define to 1 to enable quota support])
 AC_ARG_ENABLE([quota],
-[  --enable-libquota	  enable quota support],
+[  --enable-quota	  enable quota support],
 if test "$enableval" = "no"
 then
 	AC_MSG_RESULT([Disabling quota support])