Fix. Build with libcurl 7.38.0

Author: moteus

src/lcerr_easy.h

@@ -20,7 +20,6 @@ ERR_ENTRY ( FTP_ACCEPT_TIMEOUT       )
 ERR_ENTRY ( FTP_WEIRD_PASV_REPLY     )
 ERR_ENTRY ( FTP_WEIRD_227_FORMAT     )
 ERR_ENTRY ( FTP_CANT_GET_HOST        )
-ERR_ENTRY ( OBSOLETE16               )
 ERR_ENTRY ( FTP_COULDNT_SET_TYPE     )
 ERR_ENTRY ( PARTIAL_FILE             )
 ERR_ENTRY ( FTP_COULDNT_RETR_FILE    )
@@ -110,4 +109,6 @@ ERR_ENTRY ( NO_CONNECTION_AVAILABLE  )
 #endif
 #if LCURL_CURL_VER_GE(7,38,0)
 ERR_ENTRY ( HTTP2                    )
+#else
+ERR_ENTRY ( OBSOLETE16               )
 #endif