Fix up argument used

Author: jborean93

Documentation/GlobalTool.md

@@ -37,7 +37,7 @@ Options:
   --use-source-link                     Specifies whether to use SourceLink URIs in place of file system paths.
   --does-not-return-attribute           Attributes that mark methods that do not return.
   --exclude-assemblies-without-sources  Specifies behaviour of heuristic to ignore assemblies with missing source documents.
-  --use-mapping-file                    Specifies the path to a SourceRootsMappings file.
+  --source-mapping-file                 Specifies the path to a SourceRootsMappings file.
   --version                             Show version information
   -?, -h, --help                        Show help and usage information
 ```

test/coverlet.integration.tests/DotnetTool.cs

@@ -135,7 +135,7 @@ public void StandAlonePathMapping()
       {
         $"|{clonedTemplateProject.ProjectRootPath}{Path.DirectorySeparatorChar}=/_/"
       });
-      RunCommand(coverletToolCommandPath, $"\"{publishedTestFile}\" --target \"dotnet\" --targetargs \"test {Path.Combine(clonedTemplateProject.ProjectRootPath, ClonedTemplateProject.ProjectFileName)} --no-build\"  --include-test-assembly --output \"{clonedTemplateProject.ProjectRootPath}\"{Path.DirectorySeparatorChar} --use-mapping-file \"{mappingFile}\"", out standardOutput, out standardError);
+      RunCommand(coverletToolCommandPath, $"\"{publishedTestFile}\" --target \"dotnet\" --targetargs \"test {Path.Combine(clonedTemplateProject.ProjectRootPath, ClonedTemplateProject.ProjectFileName)} --no-build\"  --include-test-assembly --output \"{clonedTemplateProject.ProjectRootPath}\"{Path.DirectorySeparatorChar} --source-mapping-file \"{mappingFile}\"", out standardOutput, out standardError);
       if (!string.IsNullOrEmpty(standardError))
       {
         _output.WriteLine(standardError);