cleaned up some coding convention things

src/cms_err.c

 
 void _cms_err_panic(cms_err err, char* msg, const char* file, int line)
 {
-	if (err == CMS_ERR_NONE)
+	if (!err)
 		return;
 
 #ifdef DEBUG

src/cms_util.c

 		if (S_ISDIR(st->st_mode))
 		{
 			cms_err err = cms_util_dir_copy_recursive(path1, path2);
-			if (err != CMS_ERR_NONE)
+			if (err)
 				return err;
 		}
 		else
 		{
 			cms_err err = cms_util_file_copy(path1, path2);
-			if (err != CMS_ERR_NONE)
+			if (err)
 				return err;
 		}
 	}

src/main.c

 			cms_err_panic(CMS_ERR_INITED, NULL);
 
 		//Copy files from resources
-		cms_err_panic(
-			cms_util_dir_copy_recursive(CMS_FILE_RESOURCES, dirname),
-			dirname
-		);
+		cms_err err;
+		err = cms_util_dir_copy_recursive(CMS_FILE_RESOURCES, dirname);
+		if (err)
+			cms_err_panic(err, dirname);
 
 		//Create .cmsinited file
-		cms_err_panic(cms_util_file_create(initedPath), initedPath);
+		err = cms_util_file_create(initedPath);
+		if (err)
+			cms_err_panic(err, initedPath);
 	}
 
 	//Build