Don't strip whitespace.

preserve whitespace in accordance with #169.

Author: kms70847

sopy/spoiler/forms.py

@@ -1,7 +1,6 @@
 from flask_wtf import Form
+from wtforms import TextAreaField
 from wtforms.validators import InputRequired
-from sopy.ext.forms import StripTextAreaField
-
 
 class SpoilerForm(Form):
-    message = StripTextAreaField(validators=[InputRequired()])
+    message = TextAreaField(validators=[InputRequired()])