44142: Fix hist_reduce_spaces bug.

When there were as an unstripped comment on the line the
pointer for stripping spaces could be bogus.  Don't do
any editing in that case.

1 files changed, 3 insertions, 2 deletions

diff --git a/Src/hist.c b/Src/hist.c
index f7e53de74..901cd3b1a 100644
--- a/Src/hist.c
+++ b/Src/hist.c
@@ -1198,8 +1198,9 @@ histreduceblanks(void)
 	chline[pos] = '\0';
     } else {
 	ptr = chline + pos;
-	while ((*ptr++ = *lastptr++))
-	    ;
+	if (ptr < lastptr)
+	    while ((*ptr++ = *lastptr++))
+		;
     }
 }