git-debrebase: Refactor fail_unprocessable message construction

Clearer and easier to mark up for translation.

No functional change (verified by grepping the test logs).

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

1 files changed, 8 insertions, 6 deletions

diff --git a/git-debrebase b/git-debrebase
index 28d96ec..2c7828d 100755
--- a/git-debrebase
+++ b/git-debrebase
@@ -1243,12 +1243,14 @@ sub walk ($;$$$) {
 	if ($nogenerate) {
 	    return (undef,undef);
 	}
-	fail_unprocessable "found unprocessable commit, cannot cope".
-	    (defined $cl->{Why} ? "; $cl->{Why}:": ':').
-	    " (commit $cur) (d.".
-	    (join ' ', map { sprintf "%#x", $_->{Differs} }
-	     @{ $cl->{Parents} }).
-		 ")";
+	my $d =
+	    join ' ',
+	    map { sprintf "%#x", $_->{Differs} }
+	    @{ $cl->{Parents} };
+	fail_unprocessable sprintf +(defined $cl->{Why}
+ ? 'found unprocessable commit, cannot cope; %3$s: (commit %1$s) (d.%2$s)'
+ : 'found unprocessable commit, cannot cope: (commit %1$s) (d.%2$s)'),
+                                   $cur, $d, $cl->{Why};
     };
 
     my $build;