Roll third_party/llvm-libc/src/ 9e360f423..4c70d6b5a (53 commits)

https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libc.git/+log/9e360f42377f..4c70d6b5a62a

Created with:
  roll-dep third_party/llvm-libc/src

Change-Id: I2606d68f78af0b006db3717d17f4f28510807d3d
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/127011
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Thomas Sepez <tsepez@google.com>
diff --git a/DEPS b/DEPS
index 5b01825..da95059 100644
--- a/DEPS
+++ b/DEPS
@@ -168,7 +168,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling llvm-libc
   # and whatever else without interference from each other.
-  'llvm_libc_revision': '9e360f42377fe23ddc6d3125d5e494609f3ea55e',
+  'llvm_libc_revision': '4c70d6b5a62aa6981ba6b2e905b90bd650fb3626',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling markupsafe
   # and whatever else without interference from each other.