{Linter} Add missing help to fix linter

src/azure-cli/azure/cli/command_modules/appservice/_help.py

@@ -1899,6 +1899,11 @@
     text: az webapp log deployment list --name MyWebApp --resource-group MyResourceGroup
 """
 
+helps['functionapp log'] = """
+type: group
+short-summary: Manage function app logs.
+"""
+
 helps['functionapp log deployment'] = """
 type: group
 short-summary: Manage function app deployment logs.

src/azure-cli/azure/cli/command_modules/cdn/_help.py

@@ -702,6 +702,11 @@
     crafted: true
 """
 
+helps['cdn waf'] = """
+type: group
+short-summary: Manage CDN WAF.
+"""
+
 helps['cdn waf policy'] = """
 type: group
 short-summary: Manage CDN WAF policies.

src/azure-cli/azure/cli/command_modules/security/_help.py

@@ -90,6 +90,11 @@
         az security atp storage update --resource-group MyResourceGroup --storage-account MyStorageAccount --is-enabled false
 """
 
+helps['security va'] = """
+type: group
+short-summary: View Vulnerability Assessment.
+"""
+
 helps['security va sql'] = """
 type: group
 short-summary: View Sql Vulnerability Assessment scan results and manage baseline.

src/azure-cli/azure/cli/command_modules/sql/_help.py

@@ -1211,6 +1211,11 @@
             --event-hub-target-state Disabled
 """
 
+helps['sql server ms-support'] = """
+type: group
+short-summary: Manage a server's Microsoft support operations.
+"""
+
 helps['sql server ms-support audit-policy'] = """
 type: group
 short-summary: Manage a server's Microsoft support operations auditing policy.