encrypt.rb in fastlane-2.79.0.beta.20180125010002

- old
+ new

@@ -106,10 +106,10 @@
 
       UI.crash!("Error decrypting '#{path}'") unless success
 
       # On non-Mac systems (more specific Ubuntu Linux) it might take some time for the file to actually be there (see #11182).
       # To try to circumvent this flakyness (in tests), we wait a bit until the file appears (max 2s) (usually only 0.1 is actually waited)
-      unless FastlaneCore::Helper.is_mac?
+      unless FastlaneCore::Helper.mac?
         count = 0
         # sleep until file exists or 20*0.1s (=2s) passed
         until File.exist?(tmpfile) || count == 20
           sleep(0.1)
           count += 1