windows: alloca.h: Add comment, fix line endings.

pfalcon · pfalcon · commit 5ee1e0f5341c · 2014-05-03T14:42:39.000+03:00
diff --git a/windows/alloca.h b/windows/alloca.h
@@ -1 +1,3 @@
-#include <malloc.h>
+// Compatibility header to workaround lack of native alloca.h in some
+// Windows toolchains.
+#include <malloc.h>
