Fix sparse warnings

Author: jdelvare

CHANGELOG

@@ -1,6 +1,7 @@
 2015-04-28  Jean Delvare  <[email protected]>
 
 	* dmidecode.h, dmiopt.h: Fix sparse errors.
+	* biosdecode.c, dmiopt.c, ownership.c, vpdopt.c: Fix sparse warnings.
 
 2015-04-27  Jean Delvare  <[email protected]>
 

biosdecode.c

@@ -586,7 +586,7 @@ static int parse_command_line(int argc, char * const argv[])
 		{ "dev-mem", required_argument, NULL, 'd' },
 		{ "help", no_argument, NULL, 'h' },
 		{ "version", no_argument, NULL, 'V' },
-		{ 0, 0, 0, 0 }
+		{ NULL, 0, NULL, 0 }
 	};
 
 	while ((option = getopt_long(argc, argv, optstring, longopts, NULL)) != -1)

dmiopt.c

@@ -227,7 +227,7 @@ int parse_command_line(int argc, char * const argv[])
 		{ "from-dump", required_argument, NULL, 'F' },
 		{ "no-sysfs", no_argument, NULL, 'S' },
 		{ "version", no_argument, NULL, 'V' },
-		{ 0, 0, 0, 0 }
+		{ NULL, 0, NULL, 0 }
 	};
 
 	while ((option = getopt_long(argc, argv, optstring, longopts, NULL)) != -1)

ownership.c

@@ -119,7 +119,7 @@ static int parse_command_line(int argc, char * const argv[])
 		{ "dev-mem", required_argument, NULL, 'd' },
 		{ "help", no_argument, NULL, 'h' },
 		{ "version", no_argument, NULL, 'V' },
-		{ 0, 0, 0, 0 }
+		{ NULL, 0, NULL, 0 }
 	};
 
 	while ((option = getopt_long(argc, argv, optstring, longopts, NULL)) != -1)

vpdopt.c

@@ -99,7 +99,7 @@ int parse_command_line(int argc, char * const argv[])
 		{ "string", required_argument, NULL, 's' },
 		{ "dump", no_argument, NULL, 'u' },
 		{ "version", no_argument, NULL, 'V' },
-		{ 0, 0, 0, 0 }
+		{ NULL, 0, NULL, 0 }
 	};
 
 	while ((option = getopt_long(argc, argv, optstring, longopts, NULL)) != -1)