Merge pull request #6908 from jc-odot/patch-1

Update system-user-transact-sql.md

Author: ktoliver

docs/t-sql/functions/system-user-transact-sql.md

@@ -128,7 +128,7 @@ Territory_id Rep_id Last_sale            SRep_tracking_user
 
 ## Examples: [!INCLUDE[ssSDWfull](../../includes/sssdwfull-md.md)] and [!INCLUDE[ssPDW](../../includes/sspdw-md.md)]  
 
-### C: Using SYSTEM_USER to return the current system user name  
+### C. Using SYSTEM_USER to return the current system user name  
  The following example returns the current value of `SYSTEM_USER`.  
 
 ```sql