lvconvert: repair accepts interval and background

For mirror and raid we expose --interval and --background on
command line (instead of using just always using compiled-in defaults).

WHATS_NEW

@@ -1,5 +1,6 @@
 Version 2.02.168 - 
 ====================================
+  lvconvert --repair accepts --interval and --background option.
   More efficiently prepare _rmeta devices when creating a new raid LV.
 
 Version 2.02.167 - 5th November 2016

man/lvconvert.8.in

@@ -365,6 +365,9 @@ See corresponding operation --splitmirrors.
 VG/RaidLV
 .br
 \[bu]
+Options \-\-background, \-\-interval.
+.br
+\[bu]
 Replace failed PVs in RaidLV.
 
 .B lvconvert \-\-replace
@@ -502,6 +505,9 @@ Change the type of log used by MirrorLV.
 VG/MirrorLV
 .br
 \[bu]
+Options \-\-background, \-\-interval.
+.br
+\[bu]
 Replace failed PVs in MirrorLV.
 
 .B lvconvert \-\-type linear

tools/lvconvert.c

@@ -534,6 +534,7 @@ static int _read_params(struct cmd_context *cmd, int argc, char **argv,
 		if (arg_outside_list_is_set(cmd, "cannot be used with --repair",
 					    repair_ARG,
 					    alloc_ARG, usepolicies_ARG,
+					    background_ARG, interval_ARG,
 					    force_ARG, noudevsync_ARG, test_ARG,
 					    -1))
 			return_0;