fix filter

Author: lohanidamodar

templates/dart/lib/src/input_file.dart.twig

@@ -10,9 +10,9 @@ class InputFile {
   /// and provide `bytes` for web platform
   InputFile({this.path, this.filename, this.contentType, this.bytes}) {
     if (kIsWeb && bytes == null) {
-      throw {{ spec.title | caseUcfirs }}Exception('On web `bytes` is required');
+      throw {{ spec.title | caseUcfirst }}Exception('On web `bytes` is required');
     } else if(!kIsWeb && path == null && bytes == null) {
-      throw {{ spec.title | caseUcfirs }}Exception('On IO platforms one of `path` or `bytes`  is required`);
+      throw {{ spec.title | caseUcfirst }}Exception('On IO platforms one of `path` or `bytes`  is required`);
     }
   }
 }

templates/flutter/lib/src/input_file.dart.twig

@@ -10,9 +10,9 @@ class InputFile {
   /// and provide `bytes` for web platform
   InputFile({this.path, this.filename, this.contentType, this.bytes}) {
     if (kIsWeb && bytes == null) {
-      throw {{ spec.title | caseUcfirs }}Exception('On web `bytes` is required');
+      throw {{ spec.title | caseUcfirst }}Exception('On web `bytes` is required');
     } else if(!kIsWeb && path == null && bytes == null) {
-      throw {{ spec.title | caseUcfirs }}Exception('On IO platforms one of `path` or `bytes`  is required`);
+      throw {{ spec.title | caseUcfirst }}Exception('On IO platforms one of `path` or `bytes`  is required`);
     }
   }
 }