voucher form length now matches voucher model length.

lostplaces/lostplaces_app/forms.py

@@ -11,7 +11,10 @@ class ExplorerCreationForm(UserCreationForm):
     class Meta:
         model = Explorer
         fields = ('username', 'email')
-    voucher = forms.CharField(max_length=10, help_text='The Voucher you got from an administrator')
+    voucher = forms.CharField(
+        max_length=30,
+        help_text='The Voucher you got from an administrator'
+        )
 
     def is_valid(self):
         super().is_valid()
@@ -49,7 +52,6 @@ class PlaceImageCreateForm(forms.ModelForm):
 
         self.fields['filename'].required = False
 
-
 class TagSubmitForm(forms.Form):
 	tag_list = forms.CharField(
         max_length=500,