pstree: another tiny shrink

function                                             old     new   delta
pstree_main                                          327     324      -3

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

1 files changed, 6 insertions, 14 deletions

diff --git a/procps/pstree.c b/procps/pstree.c
index 7e127739c..54a910f76 100644
--- a/procps/pstree.c
+++ b/procps/pstree.c
@@ -61,7 +61,7 @@ typedef struct child {
 #define first_3  "-+-"
 
 struct globals {
-        /* 0-based. IOW: the number of chars we printer on current line */
+        /* 0-based. IOW: the number of chars we printed on current line */
         unsigned cur_x;
         unsigned output_width;
 
@@ -95,16 +95,6 @@ static void ensure_buffer_capacity(int bufindex)
         }
 }
 
-#if ENABLE_FEATURE_CLEAN_UP
-static void maybe_free_buffers(void)
-{
-        free(G.width);
-        free(G.more);
-}
-#else
-# define maybe_free_buffers() ((void)0)
-#endif
-
 /* NB: this function is never called with "bad" chars
  * (control chars or chars >= 0x7f)
  */
@@ -385,12 +375,11 @@ int pstree_main(int argc UNUSED_PARAM, char **argv)
 
         get_terminal_width_height(1, &G.output_width, NULL);
 
+        opt_complementary = "?1";
         getopt32(argv, "p");
         argv += optind;
 
         if (argv[0]) {
-                if (argv[1])
-                        bb_show_usage();
                 if (argv[0][0] >= '0' && argv[0][0] <= '9') {
                         pid = xatoi(argv[0]);
                 } else {
@@ -409,6 +398,9 @@ int pstree_main(int argc UNUSED_PARAM, char **argv)
                 }
         }
 
-        maybe_free_buffers();
+        if (ENABLE_FEATURE_CLEAN_UP) {
+                free(G.width);
+                free(G.more);
+        }
         return 0;
 }