Merge branch '2224-fixup-core-back-traces' into 'main'

Resolve "Fixup core back traces."

Closes #2224

See merge request isc-projects/bind9!4279

bin/tests/system/run.sh.in

@@ -196,7 +196,6 @@ then
         echoend  "E:$systest:$(date_with_args)"
         exit 1
     fi
-
 fi
 
 # Set up any dynamically generated test data
@@ -276,7 +275,7 @@ if [ -n "$core_dumps" ]; then
                                   -- \
                                   "$binary" 2>/dev/null | sed -n '/^Core was generated by/,$p' | cat_d
         echoinfo "D:$systest:--------------------------------------------------------------------------------"
-        coredump_backtrace=$(basename "${coredump}")-backtrace.txt
+        coredump_backtrace="${coredump}-backtrace.txt"
         echoinfo "D:$systest:full backtrace from $coredump saved in $coredump_backtrace"
         "${top_builddir}/libtool" --mode=execute gdb \
                                   -batch \