private: Add '%' character to GST_ASCII_IS_STRING

HTML-escaped string can have '%'. If GST_ASCII_IS_STRING
allows '%', we can use the string without a backslash.

Fixes: #57
27 jobs for fixes/57 in 67 minutes and 5 seconds (queued for 3 seconds)
latest
Status Job ID Name Coverage
  Preparation
passed #675557
gst indent

00:00:32

passed #675556
manifest

00:00:39

 
  Build
passed #675567
build cerbero cross-android universal

00:14:49

manual #675571
gst-ios-12.2 allowed to fail manual
build cerbero cross-ios universal
passed #675568
build cerbero cross win32

00:08:46

passed #675569
build cerbero cross win64

00:06:14

passed #675566
build cerbero fedora x86_64

00:06:32

passed #675570
gst-macos-10.14
build cerbero macos x86_64

00:07:18

passed #675562
build clang fedora x86_64

00:07:13

passed #675558
build fedora x86_64

00:06:24

passed #675565
docker windows 1607
build msys2

00:11:28

passed #675559
build nodebug fedora x86_64

00:04:40

passed #675560
build static fedora x86_64

00:13:13

passed #675561
build static nodebug fedora x86_64

00:04:45

passed #675563
docker windows 1607
build vs2017 amd64

00:09:54

passed #675564
docker windows 1607
build vs2017 x86

00:09:21

 
  Test
passed #675572
check fedora

00:05:59

failed #675573
integration testsuites fedora

01:00:00

passed #675578
valgrind bad

00:12:00

passed #675575
valgrind base

00:12:47

failed #675574
valgrind core

00:19:02

passed #675579
valgrind ges

00:11:45

passed #675576
valgrind good

00:18:21

passed #675577
valgrind ugly

00:02:36

 
  Integrate
passed #675580
cross-android universal examples

00:07:07

skipped #675582
gst-ios-12.2 allowed to fail manual
cross-ios universal examples
passed #675581
documentation

00:07:43

 
Name Stage Failure
failed
integration testsuites fedora Test The script exceeded the maximum execution time set for the job
  |  #150 0x00007f00a1f211c5 in gst_pad_event_default (pad=0x7f008002b5d0 [GstPad], parent=<optimized out>, event=0x7f00940422d0) at ../subprojects/gstreamer/gst/gstpad.c:3171
| #151 0x00007f00a1ffa97d in gst_validate_pad_monitor_src_event_check (handler=0x7f009ea530d0 <gst_queue_handle_src_event>, event=0x7f00940422d0, parent=0x7f00781a2490 [GstQueue], pad_monitor=0x7f00781f02e0 [GstValidatePadMonitor]) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2110
| #152 0x00007f00a1ffa97d in gst_validate_pad_monitor_src_event_func (pad=<optimized out>, parent=0x7f00781a2490 [GstQueue], event=0x7f00940422d0) at ../subprojects/gst-devtools/validate/gst/validate/gst-validate-pad-monitor.c:2383
| #153 0x00007f00a1f1b55c in gst_pad_send_event_unchecked (pad=pad@entry=0x7f008002b5d0 [GstPad], event=event@entry=0x7f00940422d0, type=<optimized out>, type@entry=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at ../subprojects/gstreamer/gst/gstpad.c:5838
| #154 0x00007f00a1f1bac4 in gst_pad_push_event_unchecked (pad=pad@entry=0x7f00781a6300 [GstGhostPad], event=event@entry=0x7f00940422d0, type=<optimized out>, type@entry=GST_PAD_PROBE_TYPE_EVENT_UPSTREAM) at ../subprojects/gstreamer/gst/gstpad.c:5483
| #155 0x00007f00a1f2474e in gst_pad_push_event (pad=pad@entry=0x7f00781a6300 [GstGhostPad], event=0x7f00940422d0) at ../subprojects/gstreamer/gst/gstpad.c:5620
| #156 0x00007f00a1f24c67 in event_forward_func (pad=pad@entry=0x7f00781a6300 [GstGhostPad], data=data@entry=0x7fff405baeb0) at ../subprojects/gstreamer/gst/gstevent.h:442
| #157 0x00007f00a1f210ae in gst_pad_forward (pad=pad@entry=0x7f007800dd90 [GstProxyPad], forward=forward@entry=0x7f00a1f24bb0 <event_forward_func>, user_data=user_data@entry=0x7fff405baeb0) at ../subprojects/gstreamer/gst/gstpad.c:3074
| #158 0x00007f00a1f211c5 in gst_pad_event_default
Job's log exceeded limit of 4194304 bytes.
failed
valgrind core Test
           Total: 852
Uploading artifacts...
gst-build/build/meson-logs/: found 2 matching files
validate-logs: found 1813 matching files

Uploading artifacts to coordinator... ok
id=675574 responseStatus=201 Created token=cFF_QoLy
Uploading artifacts...
validate-logs/*.xml: found 1 matching files

Uploading artifacts to coordinator... ok
id=675574 responseStatus=201 Created token=cFF_QoLy
ERROR: Job failed: exit code 1