setjump => setjmp [backport: 1.2] (#19496)

(cherry picked from commit d028774)

Author: ringabout

compiler/commands.nim

@@ -225,7 +225,7 @@ const
   errNoneBoehmRefcExpectedButXFound = "'none', 'boehm' or 'refc' expected, but '$1' found"
   errNoneSpeedOrSizeExpectedButXFound = "'none', 'speed' or 'size' expected, but '$1' found"
   errGuiConsoleOrLibExpectedButXFound = "'gui', 'console' or 'lib' expected, but '$1' found"
-  errInvalidExceptionSystem = "'goto', 'setjump', 'cpp' or 'quirky' expected, but '$1' found"
+  errInvalidExceptionSystem = "'goto', 'setjmp', 'cpp' or 'quirky' expected, but '$1' found"
 
 proc testCompileOptionArg*(conf: ConfigRef; switch, arg: string, info: TLineInfo): bool =
   case switch.normalize