Update sp_BlitzFirst to allow @ShowSleepingSPIDs

Minor change to allow for the @ShowSleepingSPIDs paramater to be passed to sp_BlitzWho. Have changed the EXEC into dynamic SQL to allow for this. Same issue as with sp_BlitzWho with regards to data types. I've kept as a TINYINT but we're having to convert for the dynamic SQL to NVARCHAR.

Author: RichBenner

sp_BlitzFirst.sql

@@ -22,6 +22,7 @@ ALTER PROCEDURE [dbo].[sp_BlitzFirst]
     @CheckProcedureCache TINYINT = 0 ,
     @FileLatencyThresholdMS INT = 100 ,
     @SinceStartup TINYINT = 0 ,
+	@ShowSleepingSPIDs TINYINT = 1 ,
     @VersionDate DATETIME = NULL OUTPUT
     WITH EXECUTE AS CALLER, RECOMPILE
 AS
@@ -172,7 +173,8 @@ BEGIN
 		END
 		ELSE
 		BEGIN
-			EXEC [dbo].[sp_BlitzWho]
+		    DECLARE @BlitzWho NVARCHAR(MAX) = 'EXEC [dbo].[sp_BlitzWho] @ShowSleepingSPIDs = ' + CONVERT(NVARCHAR(1), @ShowSleepingSPIDs)
+			EXEC (@BlitzWho)
 		END
     END /* IF @SinceStartup = 0 AND @Seconds > 0 AND @ExpertMode = 1   -   What's running right now? This is the first and last result set. */
 
@@ -2501,4 +2503,4 @@ EXEC sp_BlitzFirst @Seconds = 60
 , @OutputTableNameFileStats = 'BlitzFirstResults_FileStats'
 , @OutputTableNamePerfmonStats = 'BlitzFirstResults_PerfmonStats'
 , @OutputTableNameWaitStats = 'BlitzFirstResults_WaitStats'
-*/
+*/