nvram: add usage() function
Merge the help message into a single function,
so that we can use it somewhere else.
Signed-off-by: BangLang Huang <banglang.huang@foxmail.com>
(cherry picked from commit 2a253e7cdb)
			
			
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					BangLang Huang
				
			
				
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						 Jo-Philipp Wich
						Jo-Philipp Wich
					
				
			
			
				
	
			
			
			 Jo-Philipp Wich
						Jo-Philipp Wich
					
				
			
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					c446ee4ad4
				
			| @@ -133,6 +133,18 @@ static int do_info(nvram_handle_t *nvram) | ||||
| 	return 0; | ||||
| } | ||||
|  | ||||
| static void usage(void) | ||||
| { | ||||
| 	fprintf(stderr, | ||||
| 		"Usage:\n" | ||||
| 		"	nvram show\n" | ||||
| 		"	nvram info\n" | ||||
| 		"	nvram get variable\n" | ||||
| 		"	nvram set variable=value [set ...]\n" | ||||
| 		"	nvram unset variable [unset ...]\n" | ||||
| 		"	nvram commit\n" | ||||
| 	); | ||||
| } | ||||
|  | ||||
| int main( int argc, const char *argv[] ) | ||||
| { | ||||
| @@ -233,16 +245,7 @@ int main( int argc, const char *argv[] ) | ||||
| 	} | ||||
| 	else if( !done ) | ||||
| 	{ | ||||
| 		fprintf(stderr, | ||||
| 			"Usage:\n" | ||||
| 			"	nvram show\n" | ||||
| 			"	nvram info\n" | ||||
| 			"	nvram get variable\n" | ||||
| 			"	nvram set variable=value [set ...]\n" | ||||
| 			"	nvram unset variable [unset ...]\n" | ||||
| 			"	nvram commit\n" | ||||
| 		); | ||||
|  | ||||
| 		usage(); | ||||
| 		stat = 1; | ||||
| 	} | ||||
|  | ||||
|   | ||||
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