Remove '?' and '.' characters from source key names

_plugins/weblate-source-file.rb

@@ -1,14 +1,14 @@
 # Copyright 2019 Signal
 #
-# Permission is hereby granted, free of charge, to any person obtaining a copy of this software and 
+# Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
 # associated documentation files (the "Software"), to deal in the Software without restriction,
 # including without limitation the rights to use, copy, modify, merge, publish, distribute,
 # sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
-# 
-# The above copyright notice and this permission notice shall be included in all copies or 
+#
+# The above copyright notice and this permission notice shall be included in all copies or
 # substantial portions of the Software.
-# 
+#
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
 # NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
@@ -21,7 +21,7 @@ module Weblate
     def self.get(source_text)
       source_text.nil? or source_text.empty? ? source_text
                                              : source_text.strip[0..150]
-                                                          .gsub(/([^\w\d\s\.\?\!]|\n)/, '')
+                                                          .gsub(/([^\w\d\s\!]|\n)/, '')
                                                           .tr(' ', '_') << "_KEY"
     end
   end