if diff -u makes zero output, try diff -c instead

diff --git a/tests/getpart.pm b/tests/getpart.pm
index 898ecec..d1c8ec8 100644 (file)
--- a/tests/getpart.pm
+++ b/tests/getpart.pm
@@ -220,7 +220,11 @@ sub showdiff {
         print TEMP $_;
     }
     close(TEMP);
-    my @out = `diff -u $file2 $file1`;
+    my @out = `diff -u $file2 $file1 2>/dev/null`;
+
+    if(!$out[0]) {
+       @out = `diff -c $file2 $file1 2>/dev/null`;
+    }
 
     return @out;
 }