[gcc r13-7148] libstdc++: Update tzdata to 2023c

[Jonathan Wakely]

https://gcc.gnu.org/g:88ed90187ffff3870a9514007672f13476ff96a7

commit r13-7148-g88ed90187ffff3870a9514007672f13476ff96a7
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Mon Mar 27 13:51:25 2023 +0100

    libstdc++: Update tzdata to 2023c
    
    Import the new 2023c tzdata.zi file.
    
    libstdc++-v3/ChangeLog:
    
            * src/c++20/tzdata.zi: Import new file from 2023c release.

Diff:
---
 libstdc++-v3/src/c++20/tzdata.zi | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/libstdc++-v3/src/c++20/tzdata.zi b/libstdc++-v3/src/c++20/tzdata.zi
index 5f65edcd5cf..b522e395326 100644
--- a/libstdc++-v3/src/c++20/tzdata.zi
+++ b/libstdc++-v3/src/c++20/tzdata.zi
@@ -1,4 +1,4 @@
-# version 2023b
+# version 2023c
 # This zic input file is in the public domain.
 R d 1916 o - Jun 14 23s 1 S
 R d 1916 1919 - O Su>=1 23s 0 -
@@ -920,11 +920,9 @@ R l 1988 o - Jun 1 0 1 S
 R l 1989 o - May 10 0 1 S
 R l 1990 1992 - May 1 0 1 S
 R l 1992 o - O 4 0 0 -
-R l 1993 2022 - Mar lastSu 0 1 S
+R l 1993 ma - Mar lastSu 0 1 S
 R l 1993 1998 - S lastSu 0 0 -
 R l 1999 ma - O lastSu 0 0 -
-R l 2023 o - Ap 21 0 1 S
-R l 2024 ma - Mar lastSu 0 1 S
 Z Asia/Beirut 2:22 - LMT 1880
 2 l EE%sT
 R NB 1935 1941 - S 14 0 0:20 -