meson: Use preferred syntax everywhere

Meson files are normally using 4-spaces to indent and functions use first
parameter on the same line while others at next indentation level, not
following the parenthesis indentation.

So adapt libfprint to follow the meson standard.

meson.build

@@ -1,12 +1,12 @@
 project('libfprint', [ 'c', 'cpp' ],
-        version: '1.90.0',
-        license: 'LGPLv2.1+',
-        default_options: [
-          'buildtype=debugoptimized',
-          'warning_level=1',
-          'c_std=c99',
-        ],
-        meson_version: '>= 0.46.0')
+    version: '1.90.0',
+    license: 'LGPLv2.1+',
+    default_options: [
+        'buildtype=debugoptimized',
+        'warning_level=1',
+        'c_std=c99',
+    ],
+    meson_version: '>= 0.46.0')
 
 gnome = import('gnome')
 
@@ -160,11 +160,10 @@ endif
 
 pkgconfig = import('pkgconfig')
 pkgconfig.generate(
-  name: 'libfprint',
-  description: 'Generic C API for fingerprint reader access',
-  version: meson.project_version(),
-  libraries: libfprint,
-  subdirs: 'libfprint',
-  filebase: 'libfprint2',
-  install_dir: join_paths(get_option('libdir'), 'pkgconfig'),
-)
+    name: 'libfprint',
+    description: 'Generic C API for fingerprint reader access',
+    version: meson.project_version(),
+    libraries: libfprint,
+    subdirs: 'libfprint',
+    filebase: 'libfprint2',
+    install_dir: join_paths(get_option('libdir'), 'pkgconfig'))