use more distinguishable +/-
diff --git a/src/cmd/diff/diffio.c b/src/cmd/diff/diffio.c
index 8037114..640f2d2 100644
--- a/src/cmd/diff/diffio.c
+++ b/src/cmd/diff/diffio.c
@@ -377,8 +377,8 @@
at = a;
for(; i<j; i++){
fetch(ixold, at, changes[i].a-1, input[0], " ");
- fetch(ixold, changes[i].a, changes[i].b, input[0], "< ");
- fetch(ixnew, changes[i].c, changes[i].d, input[1], "> ");
+ fetch(ixold, changes[i].a, changes[i].b, input[0], "- ");
+ fetch(ixnew, changes[i].c, changes[i].d, input[1], "+ ");
at = changes[i].b+1;
}
fetch(ixold, at, b, input[0], " ");