Be consistent about EOF handling around whitespace

jsonpull.c

@@ -106,6 +106,9 @@ json_object *json_parse(FILE *f, json_object *current, char **error) {
 	int current_is = 0;
 	int c;
 again:
+	/////////////////////////// Whitespace
+
+	do {
 		c = getc(f);
 		if (c == EOF) {
 			if (current != NULL) {
@@ -115,15 +118,7 @@ again:
 				return NULL;
 			}
 		}
-
+	} while (c == ' ' || c == '\t' || c == '\r' || c == '\n');
-	/////////////////////////// Whitespace
-
-	while (c == ' ' || c == '\t' || c == '\r' || c == '\n') {
-		c = getc(f);
-		if (c == EOF) {
-			return NULL;
-		}
-	}
 
 	/////////////////////////// Arrays