docs: group the different options affecting lsjson output

Author: albertony

cmd/lsjson/lsjson.go

@@ -41,7 +41,7 @@ var commandDefinition = &cobra.Command{
 	Short: `List directories and objects in the path in JSON format.`,
 	Long: `List directories and objects in the path in JSON format.
 
-The output is an array of Items, where each Item looks like this
+The output is an array of Items, where each Item looks like this:
 
     {
       "Hashes" : {
@@ -63,44 +63,50 @@ The output is an array of Items, where each Item looks like this
       "Tier" : "hot",
     }
 
-If ` + "`--hash`" + ` is not specified, the Hashes property will be omitted. The
-types of hash can be specified with the ` + "`--hash-type`" + ` parameter (which
-may be repeated). If ` + "`--hash-type`" + ` is set then it implies ` + "`--hash`" + `.
-
-If ` + "`--no-modtime`" + ` is specified then ModTime will be blank. This can
-speed things up on remotes where reading the ModTime takes an extra
-request (e.g. s3, swift).
-
-If ` + "`--no-mimetype`" + ` is specified then MimeType will be blank. This can
-speed things up on remotes where reading the MimeType takes an extra
-request (e.g. s3, swift).
-
-If ` + "`--encrypted`" + ` is not specified the Encrypted will be omitted.
-
-If ` + "`--dirs-only`" + ` is not specified files in addition to directories are
-returned
-
-If ` + "`--files-only`" + ` is not specified directories in addition to the files
-will be returned.
-
-If ` + "`--metadata`" + ` is set then an additional Metadata key will be returned.
-This will have metadata in rclone standard format as a JSON object.
-
-if ` + "`--stat`" + ` is set then a single JSON blob will be returned about the
-item pointed to. This will return an error if the item isn't found.
-However on bucket based backends (like s3, gcs, b2, azureblob etc) if
-the item isn't found it will return an empty directory as it isn't
-possible to tell empty directories from missing directories there.
+The exact set of properties included depends on the backend:
+
+- The property IsBucket will only be included for bucket-based remotes, and only
+  for directories that are buckets. It will always be omitted when value is not true.
+- Properties Encrypted and EncryptedPath will only be included for encrypted
+  remotes, and (as mentioned below) only if the ` + "`--encrypted`" + ` option is set.
+
+Different options may also affect which properties are included:
+
+- If ` + "`--hash`" + ` is not specified, the Hashes property will be omitted. The
+  types of hash can be specified with the ` + "`--hash-type`" + ` parameter (which
+  may be repeated). If ` + "`--hash-type`" + ` is set then it implies ` + "`--hash`" + `.
+- If ` + "`--no-modtime`" + ` is specified then ModTime will be blank. This can
+  speed things up on remotes where reading the ModTime takes an extra
+  request (e.g. s3, swift).
+- If ` + "`--no-mimetype`" + ` is specified then MimeType will be blank. This can
+  speed things up on remotes where reading the MimeType takes an extra
+  request (e.g. s3, swift).
+- If ` + "`--encrypted`" + ` is not specified the Encrypted and EncryptedPath
+  properties will be omitted - even for encrypted remotes.
+- If ` + "`--metadata`" + ` is set then an additional Metadata property will be
+  returned. This will have [metadata](/docs/#metadata) in rclone standard format
+  as a JSON object.
+
+The default is to list directories and files/objects, but this can be changed
+with the following options:
+
+- If ` + "`--dirs-only`" + ` is specified then directories will be returned
+  only, no files/objects.
+- If ` + "`--files-only`" + ` is specified then files will be returned only,
+  no directories.
+
+If ` + "`--stat`" + ` is set then the the output is not an array of items,
+but instead a single JSON blob will be returned about the item pointed to.
+This will return an error if the item isn't found, however on bucket based
+backends (like s3, gcs, b2, azureblob etc) if the item isn't found it will
+return an empty directory, as it isn't possible to tell empty directories
+from missing directories there.
 
 The Path field will only show folders below the remote path being listed.
 If "remote:path" contains the file "subfolder/file.txt", the Path for "file.txt"
 will be "subfolder/file.txt", not "remote:path/subfolder/file.txt".
 When used without ` + "`--recursive`" + ` the Path will always be the same as Name.
 
-If the directory is a bucket in a bucket-based backend, then
-"IsBucket" will be set to true. This key won't be present unless it is
-"true".
-
 The time is in RFC3339 format with up to nanosecond precision.  The
 number of decimal digits in the seconds will depend on the precision
 that the remote can hold the times, so if times are accurate to the
@@ -110,7 +116,8 @@ accurate to the nearest second (Dropbox, Box, WebDav, etc.) no digits
 will be shown ("2017-05-31T16:15:57+01:00").
 
 The whole output can be processed as a JSON blob, or alternatively it
-can be processed line by line as each item is written one to a line.
+can be processed line by line as each item is written on individual lines
+(except with ` + "`--stat`" + `).
 ` + lshelp.Help,
 	Annotations: map[string]string{
 		"versionIntroduced": "v1.37",