diff options
| -rw-r--r-- | contrib/tcsh/sh.lex.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/contrib/tcsh/sh.lex.c b/contrib/tcsh/sh.lex.c index 0cccf4716059..8eccb4d3e293 100644 --- a/contrib/tcsh/sh.lex.c +++ b/contrib/tcsh/sh.lex.c @@ -851,7 +851,8 @@ getsub(struct wordent *en) return (en); } slhs.len = 0; - Strbuf_append(&slhs, lhsb.s); + if (lhsb.s != NULL && lhsb.len != 0) + Strbuf_append(&slhs, lhsb.s); Strbuf_terminate(&slhs); if (exclc) en = dosub(sc, en, global); |