Keep the roff file when gzipping it. (#24450) (#24453)

Co-authored-by: Travis Plunk <travis.plunk@microsoft.com>

.gitignore

@@ -104,3 +104,9 @@ logfile/*
 
 # Ignore nuget.config because it is dynamically generated
 nuget.config
+
+# Ignore MSBuild Binary Logs
+msbuild.binlog
+
+# Ignore gzip files in the manpage folder
+assets/manpage/*.gz

tools/packaging/packaging.psm1

@@ -1726,7 +1726,7 @@ function New-ManGzip
     # gzip in assets directory
     $GzipFile = "$RoffFile.gz"
     Write-Log "Creating man gz - running gzip..."
-    Start-NativeExecution { gzip -f $RoffFile } -VerboseOutputOnError
+    Start-NativeExecution { gzip -kf $RoffFile } -VerboseOutputOnError
 
     $ManFile = Join-Path "/usr/local/share/man/man1" (Split-Path -Leaf $GzipFile)