code: function createReplaceVersion(inPath, version, opts = {}) {
      if (!inPath) {
          throw new Error('Input path(s) argument is required');
      }
  
      if (!version) {
          throw new Error('Version argument is required');
      }
  
      const dropV = !!opts.dropV;
      const versionRegex = dropV ? /[0-9]+\.[0-9]+\.[0-9]+\b/g : /v[0-9]+\.[0-9]+\.[0-9]+\b/g;
      const versionString = dropV ? version : `v${version}`;
  
      return function updateVersions() {
          return gulp.src(inPath)
              .pipe(replace(versionRegex, versionString))
              .pipe(gulp.dest(file => file.base));
      };
  }
docs: Higher order function to create gulp function that replaces instances of the version number
  with the new version.
  @param  {string|string[]} inPath The globs to the files that need to be searched
  @param  {string} version The version to update to without a leading 'v'
  @param  {Object} [opts={}] Extra options for replace
  @param  {string} [opts.dropV=false] Optional flag to search/replace 'X.Y.Z' instead of 'vX.Y.Z'
  @return {function} Function that can be used as a gulp task