Update libc to include latest Fuchsia fix

cramertj · cramertj · commit 9d96d77f77d9 · 2017-11-26T17:01:15.000-08:00
diff --git a/src/liblibc b/src/liblibc
@@ -1 +1 @@
-Subproject commit a72a79b34def38e9004baa459a3c204eb674b14c
+Subproject commit 1a2f9639f8d293cefbe050053a574decbfe863f7
