valgrind: Fix __init__ call

Adds a test so that this is catched later.

Closes https://github.com/mesonbuild/meson/issues/1937

mesonbuild/dependencies/dev.py

@@ -236,7 +236,7 @@ class ValgrindDependency(PkgConfigDependency):
     link to its (static) libraries.
     '''
     def __init__(self, env, kwargs):
-        super().__init__('valgrind', env, None, kwargs)
+        super().__init__('valgrind', env, kwargs)
 
     def get_link_args(self):
         return []

test cases/linuxlike/5 dependency versions/meson.build

@@ -92,7 +92,7 @@ endif
 
 objc_found = add_languages('objc', required : false)
 
-foreach d : ['sdl2', 'gnustep', 'wx', 'gl', 'python3', 'boost', 'gtest', 'gmock']
+foreach d : ['sdl2', 'gnustep', 'wxwidgets', 'gl', 'python3', 'boost', 'gtest', 'gmock', 'valgrind']
   if d == 'gnustep' and not objc_found
     message('Skipping gnustep because no ObjC compiler found')
   else