fix whitespace

Author: coke

doc/Language/exceptions.pod6

@@ -63,7 +63,7 @@ To handle all exceptions use a C<default> statement.
    }
 
 
-##  Exceptions handlers and enclosing blocks. 
+##  Exceptions handlers and enclosing blocks.
 
 After a CATCH has handled the exception, the block enclosing the CATCH is left.
 
@@ -72,39 +72,38 @@ as enclosing block gets left immediately:
 
 
   die "something went wrong ...";
-  
+
   CATCH {
       # will definitely catch all the exception
       default { .Str.say; }
   }
-  
+
   # but this line will be never reached
   # as once default exception handler
   # gets executed
   # a enclosing block - mainline of the program
   # will be left immediately
 
   say "This won't be said.";
-  
-  
+
 Output:
 
   something went wrong ...
 
 Compare  with this one:
 
   CATCH {
-  
+
     CATCH {
         default { .Str.say; }
     }
-  
+
     die "something went wrong ...";
-  
+
   }
-  
+
   say "Hi! I am at the outer block!";
-  
+
 Output:
 
   Hi! I am at the outer block!