shell: make standalone shell tab-complete "busybox"

function                                             old     new   delta
busybox_main                                           -     624    +624
packed_usage                                       31758   31777     +19
applet_names                                        2638    2646      +8
applet_main                                         1528    1532      +4
applet_install_loc                                   191     192      +1
run_applet_and_exit                                  681      78    -603
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 4/1 up/down: 656/-603)           Total: 53 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/libbb/lineedit.c b/libbb/lineedit.c
index 2a5d4e7..e5721b0 100644
--- a/libbb/lineedit.c
+++ b/libbb/lineedit.c
@@ -776,7 +776,7 @@
 	}
 	pf_len = strlen(pfind);
 
-#if ENABLE_FEATURE_SH_STANDALONE && NUM_APPLETS != 1
+# if ENABLE_FEATURE_SH_STANDALONE && NUM_APPLETS != 1
 	if (type == FIND_EXE_ONLY && !dirbuf) {
 		const char *p = applet_names;
 
@@ -787,7 +787,7 @@
 				continue;
 		}
 	}
-#endif
+# endif
 
 	for (i = 0; i < npaths; i++) {
 		DIR *dir;