| needs to be escaped, too.

[r24361]

diff --git a/main.c b/main.c
index 3a3b173..79c526c 100644 (file)
--- a/main.c
+++ b/main.c
@@ -271,6 +271,7 @@ static void add_flag(struct obstack *obst, const char *format, ...)
                case '\r':
                case '\t':
                case '`':
+               case '|':
                        obstack_1grow(obst, '\\');
                        /* FALLTHROUGH */
                default: