Minor consistency fix.

git-svn-id: http://lm-sensors.org/svn/i2c-tools/trunk@5198 7894878c-1315-0410-8ee3-d5d059ff63e0

tools/i2cget.c

@@ -184,7 +184,7 @@ int main(int argc, char *argv[])
 		exit(0);
 	}
 
-	if (argc - flags < 3)
+	if (argc < flags + 3)
 		help();
 
 	i2cbus = lookup_i2c_bus(argv[flags+1]);