gc: fix build (signed char bug)

R=ken2 CC=golang-dev https://golang.org/cl/210043

gc: fix build (signed char bug)
R=ken2 CC=golang-dev https://golang.org/cl/210043
401062f7 · Russ Cox · cfff8628 · 401062f7
Commit 401062f7 authored Feb 16, 2010 by Russ Cox
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src/cmd/gc/subr.c src/cmd/gc/subr.c +1 -1

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--- a/src/cmd/gc/subr.c
+++ b/src/cmd/gc/subr.c
@@ -1539,7 +1539,7 @@ Zconv(Fmt *fp)
 		switch(r) {
 		case Runeerror:
 			if(n == 1) {
-				fmtprint(fp, "\\x%02x", *(s-1));
+				fmtprint(fp, "\\x%02x", (uchar)*(s-1));
 				break;
 			}
 			// fall through