Phobos - breaking existing code

[Walter Bright via Digitalmars-d]

On 11/28/2014 3:46 PM, Daniel Murphy wrote:
> Two years is too old, you skipped all the deprecation stages.

My favorite unhelpful message:

   src/med/spawn.d(62): Error: undefined identifier sleep, did you mean template 
slurp(Types...)(string filename, in char[] format)?

Grepping around revealed that sleep() had migrated to core.sys.posix.unistd