headers: Some trivial fixes for some documentation typos

Note also the willneed/will_need inconsistency. I guess it could be nice to ASAP
choose one of them and introduce a backward compatibility hack for the other.

The issues was mostly found with:
for a in $(grep -r '^[ /]\*.*()' $(
	find -name '*.[ch]') |
	sed 's,^.* \([^ ]*\)().*$,\1,g' |
	sort |
	uniq |
	grep ^pa_)
do
	grep -rq "^.[^*].*\<$a(" $(find * -name '*.h') || echo $a
done

src/pulsecore/asyncq.h

@@ -48,8 +48,9 @@ void pa_asyncq_free(pa_asyncq* q, pa_free_cb_t free_cb);
 void* pa_asyncq_pop(pa_asyncq *q, pa_bool_t wait);
 int pa_asyncq_push(pa_asyncq *q, void *p, pa_bool_t wait);
 
-/* Similar to pa_asyncq_push(), but if the queue is full, postpone it
- * locally and delay until pa_asyncq_before_poll_post() */
+/* Similar to pa_asyncq_push(), but if the queue is full, postpone the
+ * appending of the item locally and delay until
+ * pa_asyncq_before_poll_post() is called. */
 void pa_asyncq_post(pa_asyncq*l, void *p);
 
 /* For the reading side */

src/pulsecore/aupdate.h

@@ -39,7 +39,7 @@ void pa_aupdate_write_end(pa_aupdate *a);
 
 /* Will return 0, or 1, depending which copy of the data the caller
  * should modify. Each time called this will return the opposite of
- * the previous pa_aupdate_write_begin()/pa_aupdate_write_swap()
+ * the previous pa_aupdate_write_begin() / pa_aupdate_write_swap()
  * call. Should only be called between pa_aupdate_write_begin() and
  * pa_aupdate_write_end() */
 unsigned pa_aupdate_write_swap(pa_aupdate *a);

src/pulsecore/memblockq.h

@@ -165,7 +165,7 @@ void pa_memblockq_set_silence(pa_memblockq *memblockq, pa_memchunk *silence);
 void pa_memblockq_apply_attr(pa_memblockq *memblockq, const pa_buffer_attr *a);
 void pa_memblockq_get_attr(pa_memblockq *bq, pa_buffer_attr *a);
 
-/* Call pa_memchunk_willneed() for every chunk in the queue from the current read pointer to the end */
+/* Call pa_memchunk_will_need() for every chunk in the queue from the current read pointer to the end */
 void pa_memblockq_willneed(pa_memblockq *bq);
 
 /* Check whether the memblockq is completely empty, i.e. no data