Really fix include paths with spaces.

* util/print.jam: Do not quote the argument to the
  'echo' command on windows. It's special, and does not need quotes.
  Adding them will cause the quotes to always appear in the output,
  which would be different behaviour from Unix.

* tools/common.jam (response-file): Add quotes here.


[SVN r26836]

v2/tools/common.jam

@@ -498,7 +498,7 @@ rule response-file ( targets + : sources * : the-response-file : properties * )
 
     print.text
         [ on $(targets[1])
-          return -D$(DEFINES) -I"$(INCLUDES)"
+          return -D$(DEFINES) -I\"$(INCLUDES)\"
         ] ;
 }
 

v2/util/print.jam

@@ -428,7 +428,7 @@ if [ modules.peek : NT ]
         if $(string) || $(string) != ""
         {
             local escaped = [ regex.escape $(string) : "&|()<>^" : "^" ] ;
-            return "echo \"$(escaped)\"" ;
+            return "echo $(escaped)" ;
         }
         else
         {