meson: Use consistent style

Currently the meosn build has a mix of two styles:
arg : [foo, ...
       bar],

and
arg : [
  foo, ...,
  bar,
]

For consistency let's pick one. I've picked the later style, which I
think is more readable, and is more common in the mesa code base.

v2: - fix commit message

Acked-by: Eric Engestrom <eric.engestrom@imgtec.com>
Signed-off-by: Dylan Baker <dylan.c.baker@intel.com>

src/intel/compiler/meson.build

@@ -121,8 +121,10 @@ brw_nir_trig = custom_target(
   'brw_nir_trig_workarounds.c',
   input : 'brw_nir_trig_workarounds.py',
   output : 'brw_nir_trig_workarounds.c',
-  command : [prog_python2, '@INPUT@', '-p',
-             join_paths(meson.source_root(), 'src/compiler/nir/')],
+  command : [
+    prog_python2, '@INPUT@',
+    '-p', join_paths(meson.source_root(), 'src/compiler/nir/'),
+  ],
   depend_files : nir_algebraic_py,
   capture : true,
 )