Accepting request 944017 from home:dimstar:Factory

- Fix parameters passed to meson:
  * access-group, => access_group, system-group => system_group,
    and system-user => system_user for them to actually have an
    effect.

This actually seems to be a big ouch. Meson 0.60 will help avoid such things
Current spec with meson 0.60 fails with
 [   20s] meson.build:1:0: ERROR: Unknown options: "access-group, system-group, system-user"

The parameters were mis-spelled (- instead of _)

OBS-URL: https://build.opensuse.org/request/show/944017
OBS-URL: https://build.opensuse.org/package/show/multimedia:libs/pulseaudio?expand=0&rev=252

pulseaudio.spec

@@ -351,9 +351,9 @@ System user for PulseAudio
       -Dhal-compat=false   \
       -Dgsettings=enabled  \
       -Ddoxygen=false      \
-      -Dsystem-user=pulse  \
-      -Dsystem-group=pulse \
-      -Daccess-group=pulse-access     \
+      -Dsystem_user=pulse  \
+      -Dsystem_group=pulse \
+      -Daccess_group=pulse-access     \
       -Drunning-from-build-tree=false \
       -Dpulsedsp-location='%{_prefix}/\$LIB/pulseaudio' \
       -Dudevrulesdir="%{_udevrulesdir}"      \