message: textem should be emph
diff: "body": "\\textrm{${1:${TM_SELECTED_TEXT:text}}}",
  "description": "Use a roman font"
  },
  - "textem": {
  + "emph": {
  "prefix": "FEM",
  "body": "\\emph{${1:${TM_SELECTED_TEXT:text}}}",
  "description": "Use an emphasis font"
  