Minor changes, proposed by Jordi Mallach.

* scheme/sieve2scm.scmi: Tailor help output to meet help2man expectations.
* libmu_scm/mailutils/Makefile.am (EXTRA_DIST): Remove generated
file mailutils.scm.

@@ -15,7 +15,7 @@
 ## You should have received a copy of the GNU General Public License
 ## along with GNU Mailutils.  If not, see <http://www.gnu.org/licenses/>.
 
-EXTRA_DIST=mailutils.scm mailutils.scm.in
+EXTRA_DIST=mailutils.scm.in
 
 DISTCLEANFILES=\
  mailutils.scm

@@ -982,8 +982,7 @@ exec ${GUILE-guile} -l $0 -c '(mailutils-main)'\n")
 
 (define (sieve-usage)
   (display "usage: sieve2scm [OPTIONS][mailbox]\n")
-  (display "GNU sieve2scm -- compile a Sieve program into Scheme code\n")
-  (display "Options are:\n")
+  (display "GNU sieve2scm -- compile a Sieve program into Scheme code\n\n")
   (display "   -f, --file FILENAME      Set input file name\n")
   (display "   -o, --output FILENAME    Set output file name\n")
   (display "   -L, --lib-dir DIRNAME    Set sieve library directory name\n")