Converted 'range' to flag instead of -y argument.

.gitignore

@@ -55,7 +55,4 @@ typings/
 .yarn-integrity
 
 # dotenv environment variables file
-.env
-
-# macOS
-.DS_Store
+.env

README.md

@@ -36,8 +36,8 @@ npm install --global @captainsafia/legit
     -f --file <file>  The file to add a header to
     -u --user [user]  The user/organization who holds the license
     -y --year [year]  The year the license is in effect. 
-                      If 'range' is used in place of a year, a date range from the first commit year 
-                      to the current year will be used.
+    -r --range        Year range from first commit year to current year. 
+                      Takes precedence over -y/--year.
 ```
 
 ![Legit Demo](https://cloud.githubusercontent.com/assets/1857993/23821404/bea5dfc2-05f6-11e7-8525-7f5bd88a7829.gif)

src/index.js

@@ -34,23 +34,22 @@ program
   .option('-f --file [file]', 'The file to add a header to')
   .option('-u --user [user]', 'The user/organization who holds the license')
   .option('-y --year [year]', 'The year the license is in effect')
+  .option('-r --range', 'Year range from first commit year to current year.')
   .description('Put a license in this directory')
   .action(function(licenseArg) {
     const cwd = process.cwd();
     const fileArg = this.file;
-    var yearArg;
     const userArg = this.user || username.sync();
+    var   yearArg = this.year || new Date().getFullYear();
 
-    if (this.year === "range") {
+    if (this.range) {
       var firstCommitYear = firstCommitDate.sync(cwd + '/.git').getFullYear();
       var currentYear = new Date().getFullYear();
       if (currentYear === firstCommitYear) {
         yearArg = currentYear;
       } else {
         yearArg = firstCommitYear + "-" + currentYear;
       }
-    } else {
-      yearArg = this.year || new Date().getFullYear();
     }
 
     const user = placeholders[licenseArg]['user'];