lineedit: fix completion with applet names. closes 9361

Patch by Ron Yorston <rmy@pobox.com>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/libbb/lineedit.c b/libbb/lineedit.c
index 3bfff00..2cc61db 100644
--- a/libbb/lineedit.c
+++ b/libbb/lineedit.c
@@ -782,7 +782,7 @@
 	pf_len = strlen(pfind);
 
 #if ENABLE_FEATURE_SH_STANDALONE && NUM_APPLETS != 1
-	if (type == FIND_EXE_ONLY) {
+	if (type == FIND_EXE_ONLY && !dirbuf) {
 		const char *p = applet_names;
 
 		while (*p) {