usage: do not print trailing space for commands which have no arguments

function                                             old     new   delta
bb_show_usage                                        120     130     +10

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

diff --git a/libbb/appletlib.c b/libbb/appletlib.c
index 769b7881ce403749bfc88165caa419eadf0dcd67..f155d09081132c593188cce2563890fcc124e1e7 100644 (file)
--- a/libbb/appletlib.c
+++ b/libbb/appletlib.c
@@ -169,8 +169,11 @@ void FAST_FUNC bb_show_usage(void)
                else {
                        full_write2_str("\nUsage: ");
                        full_write2_str(applet_name);
-                       full_write2_str(" ");
-                       full_write2_str(p);
+                       if (p[0]) {
+                               if (p[0] != '\n')
+                                       full_write2_str(" ");
+                               full_write2_str(p);
+                       }
                        full_write2_str("\n");
                }
                if (ENABLE_FEATURE_CLEAN_UP)