Removing the "," after {{.Email.Body.Signature}} in themes

[kben]

It would be great removing the "," after {{.Email.Body.Signature}} in the default/flat theme. When using the themes in other languages, the "," is not needed. So the theme would be more flexiable.

[marlon-wiprud]

+1

[salsowelim]

Also after {{ .Email.Body.Name}} "," exists