Extend SC2216/SC2217 with 'true' and 'false'

ShellCheck/Analytics.hs

@@ -2819,6 +2819,7 @@ prop_checkPipeToNowhere4 = verify checkPipeToNowhere "printf 'Lol' << eof\nlol\n
 prop_checkPipeToNowhere5 = verifyNot checkPipeToNowhere "echo foo | xargs du"
 prop_checkPipeToNowhere6 = verifyNot checkPipeToNowhere "ls | echo $(cat)"
 prop_checkPipeToNowhere7 = verifyNot checkPipeToNowhere "echo foo | var=$(cat) ls"
+prop_checkPipeToNowhere8 = verify checkPipeToNowhere "foo | true"
 checkPipeToNowhere :: Parameters -> Token -> WriterT [TokenComment] Identity ()
 checkPipeToNowhere _ t =
     case t of

ShellCheck/Data.hs

@@ -79,10 +79,10 @@ commonCommands = [
 
 nonReadingCommands = [
     "alias", "basename", "bg", "cal", "cd", "chgrp", "chmod", "chown",
-    "cp", "du", "echo", "export", "fg", "fuser", "getconf", "getopt",
-    "getopts", "ipcrm", "ipcs", "jobs", "kill", "ln", "ls", "locale", "mv",
-    "nice", "printf", "ps", "pwd", "renice", "rm", "rmdir", "set", "sleep",
-    "touch", "trap", "ulimit", "unalias", "uname"
+    "cp", "du", "echo", "export", "false", "fg", "fuser", "getconf",
+    "getopt", "getopts", "ipcrm", "ipcs", "jobs", "kill", "ln", "ls",
+    "locale", "mv", "nice", "printf", "ps", "pwd", "renice", "rm", "rmdir",
+    "set", "sleep", "touch", "trap", "true", "ulimit", "unalias", "uname"
     ]
 
 sampleWords = [