[PATCH] backends: allocate enough stace for null terminator

[Sergei Trofimovich]

`gcc-15` added a new warning in https://gcc.gnu.org/PR115185:

    i386_regs.c:88:11: error: initializer-string for array of 'char' is too 
long [-Werror=unterminated-string-initialization]
       88 |           "ax", "cx", "dx", "bx", "sp", "bp", "si", "di", "ip"
          |           ^~~~

`elfutils` does not need to store '\0'. We could either initialize the
arrays with individual bytes or allocate extra byte for null.

This change allocates extra byte per string to fit in null terminator.

        * backends/i386_regs.c (i386_register_info): Add extra byte per
        entry to fix gcc-15 warning.
        * backends/x86_64_regs.c (x86_64_register_info): Ditto.

Signed-off-by: Sergei Trofimovich <sly...@gmail.com>
---
 backends/i386_regs.c   | 2 +-
 backends/x86_64_regs.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/backends/i386_regs.c b/backends/i386_regs.c
index 7ec93bb9..4bca1b1a 100644
--- a/backends/i386_regs.c
+++ b/backends/i386_regs.c
@@ -83,7 +83,7 @@ i386_register_info (Ebl *ebl __attribute__ ((unused)),
 
   switch (regno)
     {
-      static const char baseregs[][2] =
+      static const char baseregs[][3] =
        {
          "ax", "cx", "dx", "bx", "sp", "bp", "si", "di", "ip"
        };
diff --git a/backends/x86_64_regs.c b/backends/x86_64_regs.c
index ef987daf..c92c862a 100644
--- a/backends/x86_64_regs.c
+++ b/backends/x86_64_regs.c
@@ -80,7 +80,7 @@ x86_64_register_info (Ebl *ebl __attribute__ ((unused)),
 
   switch (regno)
     {
-      static const char baseregs[][2] =
+      static const char baseregs[][3] =
        {
          "ax", "dx", "cx", "bx", "si", "di", "bp", "sp"
        };
-- 
2.45.2