Roll GN to 239533d

This caused gn format to flag many things which were also fixed.

Change-Id: Ie1d9081a1b08047bec52c60f54d2a94366be1ba6
diff --git a/pw_minimal_cpp_stdlib/BUILD.gn b/pw_minimal_cpp_stdlib/BUILD.gn
index 533dbbd..97060a5 100644
--- a/pw_minimal_cpp_stdlib/BUILD.gn
+++ b/pw_minimal_cpp_stdlib/BUILD.gn
@@ -73,22 +73,14 @@
 
 pw_test("minimal_cpp_stdlib_test") {
   configs = [ ":no_cpp_includes" ]
-  deps = [
-    ":pw_minimal_cpp_stdlib",
-  ]
-  sources = [
-    "test.cc",
-  ]
+  deps = [ ":pw_minimal_cpp_stdlib" ]
+  sources = [ "test.cc" ]
 }
 
 pw_test("standard_library_test") {
-  sources = [
-    "test.cc",
-  ]
+  sources = [ "test.cc" ]
 }
 
 pw_doc_group("docs") {
-  sources = [
-    "docs.rst",
-  ]
+  sources = [ "docs.rst" ]
 }