Shortened the random resource name to 15 in total

Author: vidai-msft

tools/TestFx/Live/DebugLocalLiveTestScenarios.ps1

@@ -14,7 +14,7 @@ function ImportLocalAzModules {
     Write-Host "Start to import Azure PowerShell modules from artifacts/Debug." -ForegroundColor Green
     Write-Host "If you see module import issue, please restart the PowerShell host." -ForegroundColor Magenta
 
-    Write-Host "Importing Az.Accounts." -ForegroundColor Green
+    Write-Host "Importing Az.Accounts" -ForegroundColor Green
     Import-Module (Join-Path -Path $accountsModuleDirectory -ChildPath "Az.Accounts.psd1")
     Get-ChildItem -Path $debugDirectory -Directory -Exclude "Az.Accounts" | Get-ChildItem -File -Filter "*.psd1" | ForEach-Object {
         Write-Host "Importing $($_.FullName)" -ForegroundColor Green

tools/TestFx/Live/LiveTestUtility.psm1

@@ -33,9 +33,9 @@ param (
     [string] $DataLocation
 )
 
-New-Variable -Name ResourceGroupPrefix -Value "azpsliverg" -Scope Script -Option Constant
-New-Variable -Name ResourcePrefix -Value "azpslive" -Scope Script -Option Constant
-New-Variable -Name StorageAccountPrefix -Value "azpslivesa" -Scope Script -Option Constant
+New-Variable -Name ResourceGroupPrefix -Value "azpslrg" -Scope Script -Option Constant
+New-Variable -Name ResourcePrefix -Value "azpsl" -Scope Script -Option Constant
+New-Variable -Name StorageAccountPrefix -Value "azpslsa" -Scope Script -Option Constant
 
 New-Variable -Name CommandMaxRetryCount -Value 3 -Scope Script -Option Constant
 New-Variable -Name CommandDelay -Value 10 -Scope Script -Option Constant