style fixes

Author: qunaibit

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/cext/PythonCextUnicodeBuiltins.java

@@ -465,9 +465,11 @@ static Object formatLong(Object val, int alt, int prec, int type,
                  * Need to convert all lower case letters to upper case. and need to convert 0x to
                  * 0X (and -0x to -0X).
                  */
-                for (int i = bufi; i < len; i++)
-                    if (buf[i] >= 'a' && buf[i] <= 'x')
+                for (int i = bufi; i < len; i++) {
+                    if (buf[i] >= 'a' && buf[i] <= 'x') {
                         buf[i] -= 'a' - 'A';
+                    }
+                }
             }
             return fromCharArrayNode.execute(buf);
         }

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/csv/CSVWriterBuiltins.java

@@ -207,7 +207,7 @@ static void joinAppend(Node inliningTarget, TruffleStringBuilder sb, CSVWriter s
 
     }
 
-    protected static abstract class JoinAppendData extends Node {
+    protected abstract static class JoinAppendData extends Node {
 
         abstract boolean execute(Node inliningTarget, TruffleStringBuilder sb, CSVDialect dialect, TruffleString field, boolean quoted, boolean copyPhase,
                         PRaiseNode raiseNode,