code style fixes

Author: juan-morales

ext/json/json_parser.y

@@ -349,8 +349,7 @@ PHP_JSON_API void php_json_parser_init_ex(php_json_parser *parser,
 		int options,
 		int max_depth,
 		const php_json_parser_methods *parser_methods)
-{
-	
+{	
 	memset(parser, 0, sizeof(php_json_parser));
 	php_json_scanner_init(&parser->scanner, str, str_len, options);
 	parser->depth = 1;

ext/json/php_json_scanner.h

@@ -28,8 +28,8 @@ typedef struct _php_json_scanner {
 	php_json_ctype *limit;          /* the last read character + 1 position */
 	php_json_ctype *marker;         /* marker position for backtracking */
 	php_json_ctype *ctxmarker;      /* marker position for context backtracking */
-	php_json_ctype *str_start;      /* start position of the string */
-	php_json_ctype *input_start;    /* start position of the string */
+	php_json_ctype *str_start;      /* dynamic position of the string under analysis */
+	php_json_ctype *input_start;    /* fixed start position of the original string provided to the scanner */
 	php_json_ctype *pstr;           /* string pointer for escapes conversion */
 	zval value;                     /* value */
 	int str_esc;                    /* number of extra characters for escaping */