doc: Fix doc comment for GstChildProxy

This removes warning like:

../subprojects/gstreamer/gst/gstchildproxy.h:57: Error: Gst: identifier not found on the first line:
   * #GstChildProxyInterface::get_child_by_name:
     ^

Part-of: <gstreamer/gstreamer!1297>
25 jobs for !1297 with child-proxy-doc-fix in 54 minutes and 2 seconds (queued for 6 seconds)
latest detached
Status Name Job ID Coverage
  Trigger
passed trigger #15521343

00:00:11

 
  Build Docker
passed fedora amd64 docker #15521344

00:00:25

passed gst-indent amd64 docker #15521345

00:00:18

passed windows amd64 docker #15521346
windows shell 1809

00:01:21

 
  Preparation
passed gst indent #15521347

00:02:24

 
  Build
passed build clang fedora x86_64 #15521349

00:10:47

passed build documentation #15521355

00:14:34

manual build msys2 #15521352
docker windows 1809 allowed to fail manual
passed build nodebug fedora x86_64 #15521348

00:07:53

passed build vs2017 amd64 #15521350
docker windows 1809

00:09:23

passed build vs2017 x86 #15521351
docker windows 1809

00:09:42

passed cerbero trigger #15521356

00:30:33

passed gstreamer-full-minimal static build #15521354

00:01:54

passed gstreamer-full static build #15521353

00:09:27

 
  Test
failed check fedora #15521357
gstreamer

00:00:23

failed integration testsuites fedora 1/4 #15521358
gstreamer

00:00:32

passed integration testsuites fedora 2/4 #15521359
gstreamer

00:37:21

passed integration testsuites fedora 3/4 #15521360
gstreamer

00:37:21

passed integration testsuites fedora 4/4 #15521361
gstreamer

00:35:37

passed valgrind bad #15521366
gstreamer

00:06:52

passed valgrind base #15521363
gstreamer

00:52:21

passed valgrind core #15521362
gstreamer

00:12:12

passed valgrind ges #15521367
gstreamer

00:06:13

passed valgrind good #15521364
gstreamer

00:15:17

passed valgrind ugly #15521365
gstreamer

00:06:24

 
Name Stage Failure
failed
check fedora Test
Running with gitlab-runner 14.3.2 (e0218c92)
on gst-htz-3 z2CifdYy

Preparing the "docker" executor
Using Docker executor with image registry.freedesktop.org/ndufresne/gstreamer/amd64/fedora:2021-10-05.0-main ...
Authenticating with credentials from job payload (GitLab Registry)

Pulling docker image registry.freedesktop.org/ndufresne/gstreamer/amd64/fedora:2021-10-05.0-main ...

WARNING: Failed to pull image with policy "always": Error response from daemon: Get "https://registry.freedesktop.org/v2/": net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers) (manager.go:214:20s)
ERROR: Job failed: failed to pull image "registry.freedesktop.org/ndufresne/gstreamer/amd64/fedora:2021-10-05.0-main" with specified policies [always]: Error response from daemon: Get "https://registry.freedesktop.org/v2/": net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers) (manager.go:214:20s)

failed
integration testsuites fedora 1/4 Test
Running with gitlab-runner 14.3.2 (e0218c92)
on gst-htz-3 z2CifdYy

Preparing the "docker" executor
Using Docker executor with image registry.freedesktop.org/ndufresne/gstreamer/amd64/fedora:2021-10-05.0-main ...
Authenticating with credentials from job payload (GitLab Registry)

Pulling docker image registry.freedesktop.org/ndufresne/gstreamer/amd64/fedora:2021-10-05.0-main ...

WARNING: Failed to pull image with policy "always": Error response from daemon: Get "https://registry.freedesktop.org/v2/": net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers) (manager.go:214:29s)
ERROR: Job failed: failed to pull image "registry.freedesktop.org/ndufresne/gstreamer/amd64/fedora:2021-10-05.0-main" with specified policies [always]: Error response from daemon: Get "https://registry.freedesktop.org/v2/": net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers) (manager.go:214:29s)