doc: update complex-msg syntax examples

doc/sample/Person.im

@@ -138,16 +138,10 @@ class Person
     -> exampleProperty4 (get)
 end
 
-p1 = Person new(name:'John Doe' age:34).
+p1 = Person new(name:'John Doe', age:34).
 p1 setAge:100 inUnit:$months.
 
-
-/**
-    when sending a message with unlabeled parameters, the preceding colon (:) is
-    still required. this is part of the reason why unlabeled parameters are
-    weird and not recommended.
- **/
-p1 test(param:'Hello' :'World').
+p1 test(param:'Hello', 'World').
 
 /******************************************************************************/
 
@@ -388,10 +382,10 @@ cout put:'Hello, world!' if x > 10.
  **/
 
 p1
-    setAge:2 squared squared + 4 squared multiply(by:2 add:4 + 1 * 3)
+    setAge:2 squared squared + 4 squared multiply(by:2, add:4 + 1 * 3)
     in:'mon' + 'ths'.
 (p1
-    setAge:(((2 squared) squared) + ((4 squared) multiply(by:2 add:(4 + (1 * 3)))))
+    setAge:(((2 squared) squared) + ((4 squared) multiply(by:2, add:(4 + (1 * 3)))))
     in:('mon' + 'ths')).
 
 /******************************************************************************/
@@ -445,7 +439,7 @@ pkg2 = pkg1 map:[ :x | ^x * 2 ].
     single recipient.
  **/
 
-age = Person new(name:'John Doe' age:34);
+age = Person new(name:'John Doe', age:34);
     setAge:144 inUnit:$months;
     ageInMonths.
 
@@ -453,7 +447,7 @@ age = Person new(name:'John Doe' age:34);
 -- the same behaviour can be achieved by using do..end
 
 age = do
-    x = Person new(name:'John Doe' age:34).
+    x = Person new(name:'John Doe', age:34).
     x setAge:144 inUnit:$months.
     x ageInMonths
 end
@@ -476,7 +470,7 @@ end
     all objects by default and always returns the object itself::
  **/
 
-p1 = Person new(name:'John Doe' age:34);
+p1 = Person new(name:'John Doe', age:34);
     setAge:100 inUnit:$months;
     yourself::
 
@@ -484,7 +478,7 @@ p1 = Person new(name:'John Doe' age:34);
 /* again, with do..end */
 
 p1 = do
-    x = Person new(name:'John Doe' age:34).
+    x = Person new(name:'John Doe', age:34).
     x setAge:100 inUnit:$months.
     x
 end.