jscript: Fix definition of JSSTR_MAX_LENGTH.

[Sebastian Lackner]

Signed-off-by: Sebastian Lackner <sebastian at fds-team.de>
---
 dlls/jscript/jsstr.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/jscript/jsstr.h b/dlls/jscript/jsstr.h
index 79019a6..e8dab1a 100644
--- a/dlls/jscript/jsstr.h
+++ b/dlls/jscript/jsstr.h
@@ -39,7 +39,7 @@ struct _jsstr_t {
 };
 
 #define JSSTR_LENGTH_SHIFT 4
-#define JSSTR_MAX_LENGTH (1 << (32-JSSTR_LENGTH_SHIFT))
+#define JSSTR_MAX_LENGTH ((1 << (32-JSSTR_LENGTH_SHIFT))-1)
 #define JSSTR_FLAGS_MASK ((1 << JSSTR_LENGTH_SHIFT)-1)
 
 #define JSSTR_FLAG_LBIT     1
-- 
2.9.0