bucket: inspect help message (#1235)

* cmd/bucket inspect: display backslash in selector help message

* docs/compnents/bucket inspect: display backslash in selector help message

cmd/thanos/bucket.go

@@ -236,8 +236,8 @@ func registerBucketLs(m map[string]setupFunc, root *kingpin.CmdClause, name stri
 
 func registerBucketInspect(m map[string]setupFunc, root *kingpin.CmdClause, name string, objStoreConfig *pathOrContent) {
 	cmd := root.Command("inspect", "Inspect all blocks in the bucket in detailed, table-like way")
-	selector := cmd.Flag("selector", "Selects blocks based on label, e.g. '-l key1=\"value1\" -l key2=\"value2\"'. All key value pairs must match.").Short('l').
-		PlaceHolder("<name>=\"<value>\"").Strings()
+	selector := cmd.Flag("selector", "Selects blocks based on label, e.g. '-l key1=\\\"value1\\\" -l key2=\\\"value2\\\"'. All key value pairs must match.").Short('l').
+		PlaceHolder("<name>=\\\"<value>\\\"").Strings()
 	sortBy := cmd.Flag("sort-by", "Sort by columns. It's also possible to sort by multiple columns, e.g. '--sort-by FROM --sort-by UNTIL'. I.e., if the 'FROM' value is equal the rows are then further sorted by the 'UNTIL' value.").
 		Default("FROM", "UNTIL").Enums(inspectColumns...)
 

docs/components/bucket.md

@@ -196,9 +196,9 @@ Flags:
       --objstore.config=<bucket.config-yaml>
                              Alternative to 'objstore.config-file' flag. Object
                              store configuration in YAML.
-  -l, --selector=<name>="<value>" ...
+  -l, --selector=<name>=\"<value>\" ...
                              Selects blocks based on label, e.g. '-l
-                             key1="value1" -l key2="value2"'. All key value
+                             key1=\"value1\" -l key2=\"value2\"'. All key value
                              pairs must match.
       --sort-by=FROM... ...  Sort by columns. It's also possible to sort by
                              multiple columns, e.g. '--sort-by FROM --sort-by