UI: Remove colons from some labels

The colons are not necessary in these situations because it's clear
that the label applies to the next group of buttons anyway, and they
add unecessary visual complexity. Committing as part of D9924.

release/scripts/startup/bl_ui/space_userpref.py

@@ -1333,7 +1333,7 @@ class USERPREF_PT_saveload_autorun(FilePathsPanel, Panel):
 
         box = layout.box()
         row = box.row()
-        row.label(text="Excluded Paths:")
+        row.label(text="Excluded Paths")
         row.operator("preferences.autoexec_path_add", text="", icon='ADD', emboss=False)
         for i, path_cmp in enumerate(prefs.autoexec_paths):
             row = box.row()