Update and clean up uuid man pages, including renaming libuuid.3 to
uuid.3

Eliminate empty lines at end of uuid.h

diff --git a/e2fsprogs.spec.in b/e2fsprogs.spec.in
index b0fd0e2..23fa559 100644
--- a/e2fsprogs.spec.in
+++ b/e2fsprogs.spec.in
@@ -167,7 +167,7 @@
 %{_mandir}/man1/mk_cmds.1*
 %{_mandir}/man3/com_err.3*
 %{_mandir}/man3/libblkid.3*
-%{_mandir}/man3/libuuid.3*
+%{_mandir}/man3/uuid.3*
 %{_mandir}/man3/uuid_clear.3*
 %{_mandir}/man3/uuid_compare.3*
 %{_mandir}/man3/uuid_copy.3*