indent, clarify

diff --git a/remoteusage/aboriginal.mdwn b/remoteusage/aboriginal.mdwn
index e00ed6fe614266b3b893bba767b19ddb6ad4ace4..a558044f1771486a2bf03897223c64fbbe5656a2 100644 (file)
--- a/remoteusage/aboriginal.mdwn
+++ b/remoteusage/aboriginal.mdwn
@@ -15,44 +15,45 @@ from the script will fail.
 
 Write the following code to a file, for example `remote-notmuch.sh`.
 
-        #!/bin/bash
+       #!/bin/bash
 
-        # http://notmuchmail.org/remoteusage/aboriginal/
+       # http://notmuchmail.org/remoteusage/aboriginal/
 
-        set -eu
-        #exec 2>>remote-errors; echo -- >&2; set -x # outcomment for debugging
+       set -eu
+       # To trace execution, outcomment next line. Note that emacs input may ...
+       #exec 2>>remote-errors; echo -- >&2; set -x # ... change (no stderr).
 
-        readonly SSH_CONTROL_SOCK='~'/.ssh/master-user@host:22
+       readonly SSH_CONTROL_SOCK='~'/.ssh/master-user@host:22
 
-        readonly notmuch=notmuch
+       readonly notmuch=notmuch
 
-        printf -v ARGS '%q ' "$@" # bash feature
+       printf -v ARGS '%q ' "$@" # bash feature
 
-        readonly SSH_CONTROL_ARGS='-oControlMaster=no -S '$SSH_CONTROL_SOCK
+       readonly SSH_CONTROL_ARGS='-oControlMaster=no -S '$SSH_CONTROL_SOCK
 
-        if ssh -q $SSH_CONTROL_ARGS 0.1 $notmuch $ARGS
-        then exit 0
-        else ev=$?
-        fi
+       if ssh -q $SSH_CONTROL_ARGS 0.1 $notmuch $ARGS
+       then exit 0
+       else ev=$?
+       fi
 
-        # continuing here in case ssh exited with nonzero value.
+       # continuing here in case ssh exited with nonzero value.
 
-        case $* in
-         'config get user.primary_email') echo 'nobody@nowhere.invalid'; exit 0 ;;
-         'config get user.name') echo 'nobody'; exit 0 ;;
-         'count'*'--batch'*) while read line; do echo 1; done; exit 0 ;;
-         'count'*) echo 1; exit 0 ;;
-         'search-tags'*) echo 'errors'; exit 0 ;;
-         'search'*'--output=tags'*) echo 'errors'; exit 0 ;;
-        esac
+       case $* in
+        'config get user.primary_email') echo 'nobody@nowhere.invalid'; exit 0 ;;
+        'config get user.name') echo 'nobody'; exit 0 ;;
+        'count'*'--batch'*) while read line; do echo 1; done; exit 0 ;;
+        'count'*) echo 1; exit 0 ;;
+        'search-tags'*) echo 'errors'; exit 0 ;;
+        'search'*'--output=tags'*) echo 'errors'; exit 0 ;;
+       esac
 
-        if ssh $SSH_CONTROL_ARGS -O check 0.1
-        then
-         echo ' Control socket is alive but something failed during data transmission.'
-         exit $ev
-        fi
+       if ssh $SSH_CONTROL_ARGS -O check 0.1
+       then
+        echo ' Control socket is alive but something failed during data transmission.'
+        exit $ev
+       fi
 
-        echo " See`sed '1d;2d;s/.//;q' "$0"` for help."
+       echo " See`sed '1d;2d;s/.//;q' "$0"` for help."
 
 Note the `0.1` in ssh command line. It is used to avoid any opportunistic
 behaviour ssh might do; for example if control socket is not alive ssh