[gcc(refs/users/meissner/heads/work138-orig)] Add REVISION.

[Michael Meissner]

https://gcc.gnu.org/g:91e86aa7f3a4b434318b8488231b43efb5321e6e

commit 91e86aa7f3a4b434318b8488231b43efb5321e6e
Author: Michael Meissner <meissner@linux.ibm.com>
Date:   Thu Oct 5 14:47:01 2023 -0400

    Add REVISION.
    
    2023-10-05  Michael Meissner  <meissner@linux.ibm.com>
    
    gcc/
    
            * REVISION: New file for branch.

Diff:
---
 gcc/REVISION | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gcc/REVISION b/gcc/REVISION
new file mode 100644
index 00000000000..f2eb804b37b
--- /dev/null
+++ b/gcc/REVISION
@@ -0,0 +1 @@
+work138-orig branch