escape \ in %Z

R=ken
OCL=18202
CL=18202

diff --git a/src/cmd/gc/subr.c b/src/cmd/gc/subr.c
index c68938658837d0db10fabe0951666f2886f582f6..d188db60cd80b0f925448134f30065c7829be732 100644 (file)
--- a/src/cmd/gc/subr.c
+++ b/src/cmd/gc/subr.c
@@ -1361,6 +1361,7 @@ loop:
                *p++ = 'n';
                break;
        case '\"':
+       case '\\':
                *p++ = '\\';
                *p++ = c;
                break;