GN: Return array from pkgconfig wrapper

tools/gn/variables.cc

Index: tools/gn/variables.cc
diff --git a/tools/gn/variables.cc b/tools/gn/variables.cc
index baacb3c0726e31979e44337063f9b08d430a4c7a..12cc1913f84c5ddca437c66cdeb49fe17a887875 100644
--- a/tools/gn/variables.cc
+++ b/tools/gn/variables.cc
@@ -243,10 +243,7 @@ const char kCflags_HelpShort[] =
 // Avoid writing long help for each variant.
 #define COMMON_FLAGS_HELP \
     "\n"\
-    "  Flags are never quoted. If your flag includes a string that must be\n"\
-    "  quoted, you must do it yourself. This also means that you can\n"\
-    "  specify more than one flag in a string if necessary (\"--foo --bar\")\n"\
-    "  and have them be seen as separate by the tool.\n"
+    "  Flags will be quoted automatically if they contain a space.\n"
 const char kCommonCflagsHelp[] =
     "cflags*: Flags passed to the C compiler.\n"
     "\n"