Avoid trigger SC2181 on composite $? checks (fixes #1167)

CHANGELOG.md

@@ -8,11 +8,13 @@
 ### Fixed
 - SC2102 about repetitions in ranges no longer triggers on [[ -v arr[xx] ]]
 - SC2155 now recognizes `typeset` and local read-only `declare` statements
+- SC2181 now tries to avoid triggering for error handling functions
 - SC2290: Warn about misused = in declare & co, which were not caught by SC2270+
 - The flag --color=auto no longer outputs color when TERM is "dumb" or unset
 
 ### Changed
 - SC2048: Warning about $\* now also applies to ${array[\*]}
+- SC2181 now only triggers on single condition tests like `[ $? = 0 ]`.
 - Quote warnings are now emitted for declaration utilities in sh