Get rid of our getOpt, as it already exists as lookup

src/ShellCheck/Analytics.hs

@@ -2840,7 +2840,7 @@ checkReadWithoutR _ t@T_SimpleCommand {} | t `isUnqualifiedCommand` "read" =
     flags = getAllFlags t
     has_t0 = fromMaybe False $ do
         parsed <- getOpts flagsForRead flags
-        t <- getOpt "t" parsed
+        t <- lookup "t" parsed
         str <- getLiteralString t
         return $ str == "0"
 

src/ShellCheck/AnalyzerLib.hs

@@ -960,8 +960,6 @@ getOpts string flags = process flags
                 more <- process rest2
                 return $ (flag1, token1) : more
 
-getOpt str flags = snd <$> (listToMaybe $ filter (\(f, _) -> f == str) $ flags)
-
 supportsArrays shell = shell == Bash || shell == Ksh
 
 -- Returns true if the shell is Bash or Ksh (sorry for the name, Ksh)