doc: Fix some docstrings

15 jobs for <span class="ref-name">hotdoc</span> in 47 minutes and 9 seconds (queued for 1 second)
Status Job ID Name Coverage
  Preparation
passed #263509
gst indent

00:00:32

passed #263508
manifest

00:00:21

 
  Build
passed #263510
build fedora x86_64

00:07:35

passed #263511
build nodebug fedora x86_64

00:07:26

 
  Test
passed #263512
check fedora

00:04:49

passed #263513
integration testsuites fedora

00:09:11

 
  Full Builds
passed #263515
build cerbero android universal

00:10:21

passed #263516
build cerbero cross win32

00:06:24

passed #263517
build cerbero cross win64

00:06:30

passed #263514
build cerbero fedora x86_64

00:07:20

 
  Full Tests
passed #263519
valgrind bad

00:08:38

passed #263520
valgrind ges

00:06:29

passed #263518
valgrind good

00:11:46

 
  Apps
passed #264388
android universal examples

00:07:41

failed #263521
android universal examples

01:00:01