Since
3d6350e10 ("MINOR: log: Remove log-error-via-logformat option"),
PR_O_ERR_LOGFMT flag is not used anymore, but it was left in the proxy-t.h
header file. Simply removing it and adding a comment to indicate that the
corresponding bit is now unused.
/* unused: 0x00002000 */
#define PR_O_PERSIST 0x00004000 /* server persistence stays effective even when server is down */
#define PR_O_LOGASAP 0x00008000 /* log as soon as possible, without waiting for the stream to complete */
-#define PR_O_ERR_LOGFMT 0x00010000 /* use log-format for connection error message */
+/* unused: 0x00010000 */
#define PR_O_CHK_CACHE 0x00020000 /* require examination of cacheability of the 'set-cookie' field */
#define PR_O_TCP_CLI_KA 0x00040000 /* enable TCP keep-alive on client-side streams */
#define PR_O_TCP_SRV_KA 0x00080000 /* enable TCP keep-alive on server-side streams */