Clean up module imports in 'gash.scm'.

* gash/gash.scm: Sort the '#:use-module' lines and remove a duplicate
'(gash environment)'.

gash/gash.scm

@@ -19,10 +19,11 @@
 ;;; along with Gash.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (gash gash)
-
-  #:use-module (srfi srfi-1)
-  #:use-module (srfi srfi-26)
-
+  #:use-module (gash config)
+  #:use-module (gash environment)
+  #:use-module (gash eval)
+  #:use-module (gash parser)
+  #:use-module (gash repl)
   #:use-module (ice-9 buffered-input)
   #:use-module (ice-9 ftw)
   #:use-module (ice-9 getopt-long)
@@ -31,15 +32,8 @@
   #:use-module (ice-9 pretty-print)
   #:use-module (ice-9 receive)
   #:use-module (ice-9 regex)
-
-  #:use-module (gash config)
-  #:use-module (gash environment)
-
-  #:use-module (gash environment)
-  #:use-module (gash eval)
-  #:use-module (gash parser)
-  #:use-module (gash repl)
-
+  #:use-module (srfi srfi-1)
+  #:use-module (srfi srfi-26)
   #:export (main))
 
 (catch #t