[gcc r11-7635] libstdc++: Add a LOCAL_PATCHES file to Ryu source directory

[Patrick Palka]

https://gcc.gnu.org/g:60097beb32e26a9e207770ebce1fe6aeac364c8b

commit r11-7635-g60097beb32e26a9e207770ebce1fe6aeac364c8b
Author: Patrick Palka <ppalka@redhat.com>
Date:   Thu Mar 11 16:58:28 2021 -0500

    libstdc++: Add a LOCAL_PATCHES file to Ryu source directory
    
    This file keeps track of the local modifications we've made to our
    copy of Ryu.
    
    libstdc++-v3/ChangeLog:
    
            * src/c++17/ryu/LOCAL_PATCHES: New file.

Diff:
---
 libstdc++-v3/src/c++17/ryu/LOCAL_PATCHES | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libstdc++-v3/src/c++17/ryu/LOCAL_PATCHES b/libstdc++-v3/src/c++17/ryu/LOCAL_PATCHES
new file mode 100644
index 00000000000..c26633ee6c2
--- /dev/null
+++ b/libstdc++-v3/src/c++17/ryu/LOCAL_PATCHES
@@ -0,0 +1 @@
+r11-6248