Restore defalt scrub percentage to 8%

This is like the previous 8.1 version, even if the documented
one in the doc was 12%, the real one was 1/12==8%.

cmdline/scrub.c

@@ -623,8 +623,8 @@ int state_scrub(struct snapraid_state* state, int plan, int olderthan)
 		if (plan >= 0) {
 			countlimit = md(blockmax, plan, 100);
 		} else {
-			/* by default scrub 12.5% of the array (100/8=12.5) */
-			countlimit = md(blockmax, 1, 8);
+			/* by default scrub 8.33% of the array (100/12=8.(3)) */
+			countlimit = md(blockmax, 1, 12);
 		}
 
 		if (olderthan >= 0) {

snapraid.1

@@ -307,7 +307,7 @@ snapraid scrub
 This command verifies the data in your array comparing it with
 the hash computed in the \[dq]sync\[dq] command.
 .PP
-Every run of the command checks the 12.5% of the array, but not data
+Every run of the command checks about the 8% of the array, but not data
 already scrubbed in the previous 10 days.
 You can use the \-p, \-\-plan option to specify a different amount,
 and the \-o, \-\-older\-than option to specify a different age in days.
@@ -778,10 +778,10 @@ The files in the array are NOT modified.
 Scrubs the array, checking for silent or input/output errors in data
 and parity disks.
 .PP
-For each command invocation, the 12.5% of the array is checked, but
+For each command invocation, about the 8% of the array is checked, but
 nothing that was already scrubbed in the last 10 days.
 This means that scrubbing once a week, every bit of data is checked
-at least one time every two months.
+at least one time every three months.
 .PP
 You can define a different scrub plan or amount using the \-p, \-\-plan
 option that takes as argument:

snapraid.d

@@ -171,7 +171,7 @@ Getting Started
 	This command verifies the data in your array comparing it with
 	the hash computed in the "sync" command.
 
-	Every run of the command checks the 12.5% of the array, but not data
+	Every run of the command checks about the 8% of the array, but not data
 	already scrubbed in the previous 10 days.
 	You can use the -p, --plan option to specify a different amount,
 	and the -o, --older-than option to specify a different age in days.
@@ -486,10 +486,10 @@ Commands
 	Scrubs the array, checking for silent or input/output errors in data
 	and parity disks.
 
-	For each command invocation, the 12.5% of the array is checked, but
+	For each command invocation, about the 8% of the array is checked, but
 	nothing that was already scrubbed in the last 10 days.
 	This means that scrubbing once a week, every bit of data is checked
-	at least one time every two months.
+	at least one time every three months.
 
 	You can define a different scrub plan or amount using the -p, --plan
 	option that takes as argument:

snapraid.txt

@@ -186,7 +186,7 @@ run the "scrub" command.
 This command verifies the data in your array comparing it with
 the hash computed in the "sync" command.
 
-Every run of the command checks the 12.5% of the array, but not data
+Every run of the command checks about the 8% of the array, but not data
 already scrubbed in the previous 10 days.
 You can use the -p, --plan option to specify a different amount,
 and the -o, --older-than option to specify a different age in days.
@@ -524,10 +524,10 @@ The files in the array are NOT modified.
 Scrubs the array, checking for silent or input/output errors in data
 and parity disks.
 
-For each command invocation, the 12.5% of the array is checked, but
+For each command invocation, about the 8% of the array is checked, but
 nothing that was already scrubbed in the last 10 days.
 This means that scrubbing once a week, every bit of data is checked
-at least one time every two months.
+at least one time every three months.
 
 You can define a different scrub plan or amount using the -p, --plan
 option that takes as argument: