various: move ptr indicator to return value

src/libsystemd/sd-bus/bus-internal.c

@@ -286,7 +286,7 @@ const char* bus_message_type_to_string(uint8_t u) {
                 return NULL;
 }
 
-char *bus_address_escape(const char *v) {
+char* bus_address_escape(const char *v) {
         const char *a;
         char *r, *b;
 

src/libsystemd/sd-bus/bus-internal.h

@@ -360,7 +360,7 @@ bool service_name_is_valid(const char *p) _pure_;
 bool member_name_is_valid(const char *p) _pure_;
 bool object_path_is_valid(const char *p) _pure_;
 
-char *object_path_startswith(const char *a, const char *b) _pure_;
+char* object_path_startswith(const char *a, const char *b) _pure_;
 
 bool namespace_complex_pattern(const char *pattern, const char *value) _pure_;
 bool path_complex_pattern(const char *pattern, const char *value) _pure_;
@@ -385,7 +385,7 @@ int bus_rqueue_make_room(sd_bus *bus);
 
 bool bus_origin_changed(sd_bus *bus);
 
-char *bus_address_escape(const char *v);
+char* bus_address_escape(const char *v);
 
 int bus_attach_io_events(sd_bus *b);
 int bus_attach_inotify_event(sd_bus *b);

src/libsystemd/sd-bus/bus-match.c

@@ -823,7 +823,7 @@ int bus_match_parse(
         return 0;
 }
 
-char *bus_match_to_string(struct bus_match_component *components, size_t n_components) {
+char* bus_match_to_string(struct bus_match_component *components, size_t n_components) {
         _cleanup_(memstream_done) MemStream m = {};
         FILE *f;
         int r;

src/libsystemd/sd-bus/bus-match.h

@@ -77,6 +77,6 @@ enum bus_match_node_type bus_match_node_type_from_string(const char *k, size_t n
 
 int bus_match_parse(const char *match, struct bus_match_component **ret_components, size_t *ret_n_components);
 void bus_match_parse_free(struct bus_match_component *components, size_t n_components);
-char *bus_match_to_string(struct bus_match_component *components, size_t n_components);
+char* bus_match_to_string(struct bus_match_component *components, size_t n_components);
 
 enum bus_match_scope bus_match_get_scope(const struct bus_match_component *components, size_t n_components);

src/libsystemd/sd-journal/journal-internal.h

@@ -136,7 +136,7 @@ struct sd_journal {
         Hashmap *errors;
 };
 
-char *journal_make_match_string(sd_journal *j);
+char* journal_make_match_string(sd_journal *j);
 void journal_print_header(sd_journal *j);
 int journal_get_directories(sd_journal *j, char ***ret);
 

src/libsystemd/sd-journal/sd-journal.c

@@ -431,7 +431,7 @@ static char *match_make_string(Match *m) {
         return TAKE_PTR(p);
 }
 
-char *journal_make_match_string(sd_journal *j) {
+char* journal_make_match_string(sd_journal *j) {
         assert(j);
 
         return match_make_string(j->level0);