build: Rename (mcron main) to (mcron utils).

* src/mcron/main.scm: Rename to ...
* src/mcron/utils.scm: ... this.
* src/mcron/scripts/cron.scm: Adapt.
* src/mcron/scripts/crontab.scm: Likewise.
* src/mcron/scripts/mcron.scm: Likewise.
* Makefile.am (dist_mcronmodule_DATA): Likewise.

Makefile.am

@@ -40,8 +40,8 @@ dist_mcronmodule_DATA = \
   src/mcron/base.scm \
   src/mcron/environment.scm \
   src/mcron/job-specifier.scm \
-  src/mcron/main.scm \
   src/mcron/redirect.scm \
+  src/mcron/utils.scm \
   src/mcron/vixie-specification.scm \
   src/mcron/vixie-time.scm
 

src/mcron/scripts/cron.scm

@@ -21,7 +21,7 @@
   #:use-module (mcron base)
   #:use-module (mcron config)
   #:use-module (mcron job-specifier)
-  #:use-module (mcron main)
+  #:use-module (mcron utils)
   #:use-module (mcron vixie-specification)
   #:use-module (srfi srfi-2)
   #:export (main))

src/mcron/scripts/crontab.scm

@@ -20,7 +20,7 @@
 (define-module (mcron scripts crontab)
   #:use-module (ice-9 rdelim)
   #:use-module (mcron config)
-  #:use-module (mcron main)
+  #:use-module (mcron utils)
   #:use-module (mcron vixie-specification)
   #:export (main))
 

src/mcron/scripts/mcron.scm

@@ -21,7 +21,7 @@
   #:use-module (mcron base)
   #:use-module (mcron config)
   #:use-module (mcron job-specifier)    ;for user/system files
-  #:use-module (mcron main)
+  #:use-module (mcron utils)
   #:use-module (mcron vixie-specification)
   #:export (main))
 

src/mcron/utils.scm

@@ -1,4 +1,4 @@
-;;; main.scm -- helper procedures
+;;;; utils.scm -- helper procedures
 ;;; Copyright © 2003, 2012 Dale Mellor <dale_mellor@users.sourceforge.net>
 ;;; Copyright © 2015, 2016 Mathieu Lirzin <mthl@gnu.org>
 ;;;
@@ -17,7 +17,7 @@
 ;;; You should have received a copy of the GNU General Public License
 ;;; along with GNU Mcron.  If not, see <http://www.gnu.org/licenses/>.
 
-(define-module (mcron main)
+(define-module (mcron utils)
   #:use-module (ice-9 getopt-long)
   #:use-module (ice-9 rdelim)
   #:use-module (mcron config)