SCP: allow file names with bytes > 126

When parsing the SCP protocol and verifying that the data looks like a
valid file name, byte values over 126 must not be consider illegal since
UTF-8 file names will use such codes.

Reported by: Uli Zappe
Bug: http://www.libssh2.org/mail/libssh2-devel-archive-2010-08/0112.shtml

src/scp.c

@@ -621,11 +621,9 @@ scp_recv(LIBSSH2_SESSION * session, const char *path, struct stat * sb)
                         scpRecv_response[session->scpRecv_response_len - 1] !=
                         '\n')
                     &&
-                    ((session->
-                      scpRecv_response[session->scpRecv_response_len - 1] < 32)
-                     || (session->
-                         scpRecv_response[session->scpRecv_response_len - 1] >
-                         126))) {
+                    (session->
+                     scpRecv_response[session->scpRecv_response_len - 1]
+                     < 32)) {
                     _libssh2_error(session, LIBSSH2_ERROR_SCP_PROTOCOL,
                                    "Invalid data in SCP response");
                     goto scp_recv_error;