Unable to add secrets that start with "@"

As a result of https://github.com/fugue/credstash/issues/19 it seems that it is now impossible to add secrets that begin with @:

$ credstash put -v 1 'jenkins_ad_bind_pass' '@4=saCD0nF'
usage: credstash put [-h] [-k KEY] [-v VERSION] [-a]
                     [-d {SHA,MD5,RIPEMD,SHA384,SHA224,SHA256,SHA512,WHIRLPOOL}]
                     credential value [context [context ...]]
credstash put: error: argument value: Unable to read file 4=saCD0nF

The root cause is that the “@” is interpreted by credstash as denoting a file name argument. As a result, there seems to be no way to add an actual secret if it begins with an “@” character.

[alexharv074]

It should be noted that the workaround above adds a newline as part of the secret. It should be:

$ echo -n "@4=saCD0nF" | credstash put -v 1 'jenkins_ad_bind_pass' - 

[bastianb]

How would the workaround work with contexts? I tried to echo -n… with contexts in it, doesnt work