chore(sidekick/rust): Add the RPC sample generation flag

Closes googleapis/google-cloud-rust#2689

Author: amanda-tarafa

cmd/legacyautomation/doc.go

@@ -22,25 +22,32 @@ Usage:
 
 	automation <command> [arguments]
 
+
 The commands are:
 
+
 # generate
 
 The generate command triggers a Cloud Build job that runs librarian generate command for every
 repository onboarded to Librarian generate automation.
 
 Usage:
 
-	automation generate [flags]
+  automation generate [flags]
 
 Flags:
 
-	-build
-	  	The _BUILD flag (true/false) to Librarian CLI's -build option
-	-project string
-	  	Google Cloud Platform project ID (default "cloud-sdk-librarian-prod")
-	-push
-	  	The _PUSH flag (true/false) to Librarian CLI's -push option
+  -build
+    	The _BUILD flag (true/false) to Librarian CLI's -build option
+  -project string
+    	Google Cloud Platform project ID (default "cloud-sdk-librarian-prod")
+  -push
+    	The _PUSH flag (true/false) to Librarian CLI's -push option
+
+
+
+
+
 
 # publish-release
 
@@ -49,12 +56,17 @@ for every repository onboarded to Librarian publish-release automation.
 
 Usage:
 
-	automation publish-release [flags]
+  automation publish-release [flags]
 
 Flags:
 
-	-project string
-	  	Google Cloud Platform project ID (default "cloud-sdk-librarian-prod")
+  -project string
+    	Google Cloud Platform project ID (default "cloud-sdk-librarian-prod")
+
+
+
+
+
 
 # stage-release
 
@@ -63,21 +75,32 @@ every repository onboarded to Librarian stage-release automation.
 
 Usage:
 
-	automation stage-release [flags]
+  automation stage-release [flags]
 
 Flags:
 
-	-project string
-	  	Google Cloud Platform project ID (default "cloud-sdk-librarian-prod")
-	-push
-	  	The _PUSH flag (true/false) to Librarian CLI's -push option
+  -project string
+    	Google Cloud Platform project ID (default "cloud-sdk-librarian-prod")
+  -push
+    	The _PUSH flag (true/false) to Librarian CLI's -push option
+
+
+
+
+
 
 # version
 
 Version prints version information for the automation binary.
 
 Usage:
 
-	automation version
+  automation version
+
+
+
+
 */
 package main
+
+