linux-kernel - [Patch] perf: use format string of printf to align strings

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Date:	Mon, 14 Dec 2009 03:23:56 -0500
From:	Amerigo Wang <amwang@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...e.hu, Amerigo Wang <amwang@...hat.com>
Subject: [Patch] perf: use format string of printf to align strings

Instead of filling whitespaces to do alignment, use
printf's format string.

Signed-off-by: WANG Cong <amwang@...hat.com>

---
diff --git a/tools/perf/builtin-help.c b/tools/perf/builtin-help.c
index 9f810b1..e427d69 100644
--- a/tools/perf/builtin-help.c
+++ b/tools/perf/builtin-help.c
@@ -286,8 +286,7 @@ void list_common_cmds_help(void)
 
 	puts(" The most commonly used perf commands are:");
 	for (i = 0; i < ARRAY_SIZE(common_cmds); i++) {
-		printf("   %s   ", common_cmds[i].name);
-		mput_char(' ', longest - strlen(common_cmds[i].name));
+		printf("   %-*s   ", longest, common_cmds[i].name);
 		puts(common_cmds[i].help);
 	}
 }
--
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