Minor fixes

* mu/Makefile.am (mailutils-config): Fix sed expression
* mu/mailutils-config.in: Replace MUNAME once and assign
it to the variable.

@@ -20,9 +20,10 @@ bin_SCRIPTS = mailutils-config
 
 CLEANFILES=mailutils-config
 mailutils-config: $(top_srcdir)/mu/mailutils-config.in
-	$(AM_V_GEN)muname=`echo mu | \
-              sed -e 's/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/' | \
-              sed 'N;N;N;s,\n, ,g'`; \
+	$(AM_V_GEN)muname=mu; \
+	      test -n "$(transform)" && \
+	        muname=`echo $$muname | \
+                     sed -e 's/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/'`; \
 	sed 's/MUNAME/'$$muname'/g' $(top_srcdir)/mu/mailutils-config.in > mailutils-config
 
 

@@ -23,6 +23,7 @@
 mode=
 file=
 dir=`expr "$0" : '\(.*\)/.*'`
+muname=MUNAME
 
 test -n "$dir" && PATH=$PATH:$dir
 
@@ -34,13 +35,13 @@ alternatives instead:
 
        Traditional usage          |   Use instead
     ------------------------------+-------------------
-    mailutils-config --compile    | MUNAME cflags
-    mailutils-config --link       | MUNAME ldflags
-    mailutils-config --info       | MUNAME info
-    mailutils-config --query      | MUNAME query
-    mailutils-config --query=FILE | MUNAME query -f FILE
+    mailutils-config --compile    | $muname cflags
+    mailutils-config --link       | $muname ldflags
+    mailutils-config --info       | $muname info
+    mailutils-config --query      | $muname query
+    mailutils-config --query=FILE | $muname query -f FILE
 
-For more information, try \`MUNAME --help'.
+For more information, try \`$muname --help'.
 
 EOT
     exit 0
@@ -93,7 +94,7 @@ do
     usage
     ;;
   -V|--version|--versio|--versi|--vers|--ver|--ve|--v)
-    MUNAME --version | sed -n '1{s/^MUNAME/mailutils-config/;s/(\(GNU Mailutils\)) \([0-9][0-9.]*\).*/(\1 \2)/;p}'
+    $muname --version | sed -n '1{s/^MUNAME/mailutils-config/;s/(\(GNU Mailutils\)) \([0-9][0-9.]*\).*/(\1 \2)/;p}'
     exit 0
     ;;
   *)
@@ -111,4 +112,4 @@ if test -n "$file"; then
   set -- -f"$file" $*
 fi
 
-MUNAME $mode $*
+$muname $mode $*