SQUASH: --severity specifies *minimum* severity to be handled

Signed-off-by: Martin Schwenke <martin@meltin.net>

src/ShellCheck/Checker.hs

@@ -68,7 +68,7 @@ checkScript sys spec = do
             (parseMessages ++ map translator analysisMessages)
 
     shouldInclude (PositionedComment _ _ (Comment severity code _)) =
-        severity <= csMaxSeverity spec &&
+        severity <= csMinSeverity spec &&
         code `notElem` csExcludedWarnings spec
 
     sortMessages = sortBy (comparing order)

src/ShellCheck/Interface.hs

@@ -36,7 +36,7 @@ data CheckSpec = CheckSpec {
     csCheckSourced :: Bool,
     csExcludedWarnings :: [Integer],
     csShellTypeOverride :: Maybe Shell,
-    csMaxSeverity :: Severity
+    csMinSeverity :: Severity
 } deriving (Show, Eq)
 
 data CheckResult = CheckResult {
@@ -51,7 +51,7 @@ emptyCheckSpec = CheckSpec {
     csCheckSourced = False,
     csExcludedWarnings = [],
     csShellTypeOverride = Nothing,
-    csMaxSeverity = StyleC
+    csMinSeverity = StyleC
 }
 
 newParseSpec :: ParseSpec