fix string replacement with % (% seems to be prioriter than +). Fixes #5494

src/chat_control.py

@@ -1689,8 +1689,9 @@ class ChatControl(ChatControlBase):
 		if 'location' in self.contact.pep:
 			location = self.contact.pep['location']._pep_specific_data
 			if ('lat' in location) and ('lon' in location):
-				uri = 'http://www.openstreetmap.org/?mlat=%(lat)s&mlon=%(lon)s&' + \
-					'zoom=16' % {'lat': location['lat'], 'lon': location['lon']}
+				uri = 'http://www.openstreetmap.org/?' + \
+					'mlat=%(lat)s&mlon=%(lon)s&zoom=16' % {'lat': location['lat'],
+					'lon': location['lon']}
 				helpers.launch_browser_mailer('url', uri)
 
 	def _on_window_motion_notify(self, widget, event):