Break out srcfn (nfc)

diff --git a/dgit b/dgit
index d00ab1f04fc7d61b69f10d03cf0dbf1f18628771..97bc187bfca9ab1e236ede6555d4a15c40659a19 100755 (executable)
--- a/dgit
+++ b/dgit
@@ -119,9 +119,14 @@ sub stripepoch ($) {
     return $vsn;
 }
 
+sub srcfn ($$) {
+    my ($vsn,$sfx) = @_;
+    return "${package}_".(stripepoch $vsn).$sfx
+}
+
 sub dscfn ($) {
     my ($vsn) = @_;
-    return "${package}_".(stripepoch $vsn).".dsc";
+    return srcfn($vsn,".dsc");
 }
 
 our $us = 'dgit';