correct spelling

Author: timfel

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/exception/PBaseException.java

@@ -192,7 +192,7 @@ public List<TruffleStackTraceElement> getStackTrace() {
     public void reifyException() {
         if (stackTrace == null && traceback == null) {
             TruffleStackTrace.fillIn(exception);
-            stackTrace = TruffleStackTrace.getStacktrace(exception);
+            stackTrace = TruffleStackTrace.getStackTrace(exception);
             Iterator<TruffleStackTraceElement> iter = stackTrace.iterator();
             while (iter.hasNext()) {
                 TruffleStackTraceElement element = iter.next();

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/exception/ExceptionUtils.java

@@ -56,7 +56,7 @@ private ExceptionUtils() {
 
     @TruffleBoundary
     public static void printPythonLikeStackTrace(PException e) {
-        List<TruffleStackTraceElement> stackTrace = TruffleStackTrace.getStacktrace(e);
+        List<TruffleStackTraceElement> stackTrace = TruffleStackTrace.getStackTrace(e);
         ArrayList<String> stack = new ArrayList<>();
         for (TruffleStackTraceElement frame : stackTrace) {