Add missing begin-quotes to http constants

Author: ras0219-msft

Release/include/cpprest/details/http_constants.dat

@@ -51,11 +51,11 @@ DAT(UnsupportedMediaType,  415, _XPLATSTR("Unsupported Media Type"))
 DAT(RangeNotSatisfiable,   416, _XPLATSTR("Requested range not satisfiable"))
 DAT(ExpectationFailed,     417, _XPLATSTR("Expectation Failed"))
 DAT(MisdirectedRequest,    421, _XPLATSTR("Misdirected Request"))
-DAT(UnprocessableEntity,   422, _XPLATSTR(Unprocessable Entity"))
-DAT(Locked,                423, _XPLATSTR(Locked"))
-DAT(FailedDependency,      424, _XPLATSTR(Failed Dependency"))
-DAT(UpgradeRequired,       426, _XPLATSTR(Upgrade Required"))
-DAT(PreconditionRequired,  428, _XPLATSTR(Precondition Required"))
+DAT(UnprocessableEntity,   422, _XPLATSTR("Unprocessable Entity"))
+DAT(Locked,                423, _XPLATSTR("Locked"))
+DAT(FailedDependency,      424, _XPLATSTR("Failed Dependency"))
+DAT(UpgradeRequired,       426, _XPLATSTR("Upgrade Required"))
+DAT(PreconditionRequired,  428, _XPLATSTR("Precondition Required"))
 DAT(TooManyRequests,       429, _XPLATSTR("Too Many Requests"))
 DAT(RequestHeaderFieldsTooLarge,  431, _XPLATSTR("Request Header Fields Too Large"))
 DAT(UnavailableForLegalReasons,   451, _XPLATSTR("Unavailable For Legal Reasons"))