Fixed the small descrepancies in the PR

Author: jcwalker

DSCResources/DSR_ReplaceText/DSR_ReplaceText.psm1

@@ -357,6 +357,8 @@ function Assert-ParametersValid
 #>
 function Add-ConfigurationEntry
 {
+    [OutputType([String])]
+    [CmdletBinding()]
     param
     (
         [Parameter()]
@@ -368,13 +370,13 @@ function Add-ConfigurationEntry
         $Text
     )
 
-    $stringBuilder = New-Object System.Text.StringBuilder
+    $stringBuilder = New-Object -TypeName System.Text.StringBuilder
 
     $fileContentArray = $FileContent.Trim() -split '\n'
 
     foreach ($line in $fileContentArray)
     {
-        $null = $stringBuilder.AppendLine($line.Trim())
+        $null = $stringBuilder.AppendLine($line)
     }
 
     $null = $stringBuilder.AppendLine($Text)

Tests/Unit/DSR_ReplaceText.Tests.ps1

@@ -217,7 +217,7 @@ Setting3.Test=Value4
                 }
             }
 
-            Context 'File exists and search text can not be found'{
+            Context 'File exists and search text can not be found' {
                 # verifiable (should be called) mocks
                 Mock `
                     -CommandName Assert-ParametersValid `
@@ -400,7 +400,7 @@ Setting3.Test=Value4
                     } | Should -Not -Throw
                 }
 
-                It 'Should return true' {
+                It 'Should return false' {
                     $script:result | Should -Be $false
                 }