Update JS_GetImplementationVersion() date string (bug 67111, r=brendan)

js/src/jsapi.c

@@ -1066,7 +1066,7 @@ JS_ToggleOptions(JSContext *cx, uint32 options)
 JS_PUBLIC_API(const char *)
 JS_GetImplementationVersion(void)
 {
-    return "JavaScript-C 1.5 pre-release 6a 2004-06-09";
+    return "JavaScript-C 1.7 pre-release 1 2006-04-04";
 }