Switch order of fnamemodify modifiers

[maackle]

This actually makes a difference for me. In the old version, findRoot would sometimes return a relative path, causing e.g. Pload to fail like so:

s:callFn: response: ["Couldn't connect to purs ide server on port PortNumber 4242:","Network.Socket.connect: <socket: 27>: does not exist (Connection refused)
",""]
purescript#ide#call: command: {"command":"load"}
purescript#ide#call: no server found
s:startFn: resp: {"resultType":"failed","error":["Couldn't connect to purs ide server on port PortNumber 4242:","Network.Socket.connect: <socket: 27>: does no
t exist (Connection refused)",""]}
s:startFn: starting new server
PSCIDEstart: ["purs","ide","server","-p",4242,"-d","frontend","src/**/*.purs","bower_components/**/*.purs"]
purs ide server: purs: frontend: changeWorkingDirectory: does not exist (No such file or directory)
purs ide server: exit
s:startFn: resending
s:retryFn: response: ["Couldn't connect to purs ide server on port PortNumber 4242:","Network.Socket.connect: <socket: 28>: does not exist (Connection refused
)",""]
purs ide server: Couldn't connect to purs ide server on port PortNumber 4242: Network.Socket.connect: <socket: 28>: does not exist (Connection refused)

Note that the -d flag is given a relative path. With the fix, I get an absolute path and all is well.

:help filename-modifiers says that "These modifiers can be given, in this order:", and :p is listed first.

[coot]

Thanks, indeed :p has to be applied first.