[gdb/contrib] Add two rules in common-misspellings.txt

Eli mentioned [1] that given that we use US English spelling in our
documentation, we should use "behavior" instead of "behaviour".

In wikipedia-common-misspellings.txt there's a rule:
...
behavour->behavior, behaviour
...
which leaves this as a choice.

Add an overriding rule to hardcode the choice to common-misspellings.txt:
...
behavour->behavior
...
and add a rule to rewrite behaviour into behavior:
...
behaviour->behavior
...
and re-run spellcheck.sh on gdb*.

Tested on x86_64-linux.

[1] https://sourceware.org/pipermail/gdb-patches/2024-November/213371.html

1 files changed, 2 insertions, 2 deletions

diff --git a/gdb/aarch64-tdep.c b/gdb/aarch64-tdep.c
index 6850baf..bc8746e 100644
--- a/gdb/aarch64-tdep.c
+++ b/gdb/aarch64-tdep.c
@@ -2584,7 +2584,7 @@ aarch64_extract_return_value (struct type *type, struct regcache *regs,
     }
   else
     {
-      /* For a structure or union the behaviour is as if the value had
+      /* For a structure or union the behavior is as if the value had
 	 been stored to word-aligned memory and then loaded into
 	 registers with 64-bit load instruction(s).  */
       int len = type->length ();
@@ -2710,7 +2710,7 @@ aarch64_store_return_value (struct type *type, struct regcache *regs,
     }
   else
     {
-      /* For a structure or union the behaviour is as if the value had
+      /* For a structure or union the behavior is as if the value had
 	 been stored to word-aligned memory and then loaded into
 	 registers with 64-bit load instruction(s).  */
       int len = type->length ();