GitLab

(Fprevious_char_property_change)
(Fnext_single_char_property_change)
(Fprevious_single_char_property_change, Fnext_property_change)
(Fnext_single_property_change, Fprevious_property_change)
(Fprevious_single_property_change, Fadd_text_properties)
(Fput_text_property, Fset_text_properties)
(Fremove_text_properties, Fremove_list_of_text_properties)
(Ftext_property_any, Ftext_property_not_all): Clarify doc strings.