[bug] switch to keybase go-ps implementation

The old mitchellh go-ps is not maintained and it has an issue where it
truncates the process names:
https://github.com/mitchellh/go-ps/issues/15

- Related: #152

go.mod

 module 0xacab.org/leap/bitmask-vpn
 
+go 1.14
+
 require (
 	0xacab.org/leap/go-dialog v0.0.0-20181123042829-0ee8438431a0
 	0xacab.org/leap/shapeshifter v0.0.0-20191029173606-85d3e8ac43e2
@@ -17,9 +19,9 @@ require (
 	github.com/gotk3/gotk3 v0.0.0-20191027191019-60cba67d4ea4 // indirect
 	github.com/jmshal/go-locale v0.0.0-20190124211249-eb00fb25cc61
 	github.com/kardianos/osext v0.0.0-20190222173326-2bc1f35cddc0 // indirect
+	github.com/keybase/go-ps v0.0.0-20190827175125-91aafc93ba19
 	github.com/mattn/go-gtk v0.0.0-20191030024613-af2e013261f5 // indirect
 	github.com/mattn/go-pointer v0.0.0-20190911064623-a0a44394634f // indirect
-	github.com/mitchellh/go-ps v0.0.0-20190716172923-621e5597135b
 	github.com/sevlyar/go-daemon v0.1.5
 	github.com/skelterjohn/go.wde v0.0.0-20190318181201-adc3f78cdb45 // indirect
 	github.com/skratchdot/open-golang v0.0.0-20190402232053-79abb63cd66e

go.sum

@@ -75,16 +75,14 @@ github.com/jmshal/go-locale v0.0.0-20190124211249-eb00fb25cc61 h1:9vsXCXRCUb82jJ
 github.com/jmshal/go-locale v0.0.0-20190124211249-eb00fb25cc61/go.mod h1:+Ny9b1U6p4zX0L9w+k3hSkz3puupLFP14Mion+rGNF8=
 github.com/kardianos/osext v0.0.0-20190222173326-2bc1f35cddc0 h1:iQTw/8FWTuc7uiaSepXwyf3o52HaUYcV+Tu66S3F5GA=
 github.com/kardianos/osext v0.0.0-20190222173326-2bc1f35cddc0/go.mod h1:1NbS8ALrpOvjt0rHPNLyCIeMtbizbir8U//inJ+zuB8=
+github.com/keybase/go-ps v0.0.0-20190827175125-91aafc93ba19 h1:WjT3fLi9n8YWh/Ih8Q1LHAPsTqGddPcHqscN+PJ3i68=
+github.com/keybase/go-ps v0.0.0-20190827175125-91aafc93ba19/go.mod h1:hY+WOq6m2FpbvyrI93sMaypsttvaIL5nhVR92dTMUcQ=
 github.com/mattn/go-gtk v0.0.0-20180216084204-5a311a1830ab/go.mod h1:PwzwfeB5syFHXORC3MtPylVcjIoTDT/9cvkKpEndGVI=
 github.com/mattn/go-gtk v0.0.0-20190405072524-4deadb416788/go.mod h1:PwzwfeB5syFHXORC3MtPylVcjIoTDT/9cvkKpEndGVI=
 github.com/mattn/go-gtk v0.0.0-20191030024613-af2e013261f5/go.mod h1:PwzwfeB5syFHXORC3MtPylVcjIoTDT/9cvkKpEndGVI=
 github.com/mattn/go-pointer v0.0.0-20171114154726-1d30dc4b6f28/go.mod h1:2zXcozF6qYGgmsG+SeTZz3oAbFLdD3OWqnUbNvJZAlc=
 github.com/mattn/go-pointer v0.0.0-20180825124634-49522c3f3791/go.mod h1:2zXcozF6qYGgmsG+SeTZz3oAbFLdD3OWqnUbNvJZAlc=
 github.com/mattn/go-pointer v0.0.0-20190911064623-a0a44394634f/go.mod h1:2zXcozF6qYGgmsG+SeTZz3oAbFLdD3OWqnUbNvJZAlc=
-github.com/mitchellh/go-ps v0.0.0-20170309133038-4fdf99ab2936 h1:kw1v0NlnN+GZcU8Ma8CLF2Zzgjfx95gs3/GN3vYAPpo=
-github.com/mitchellh/go-ps v0.0.0-20170309133038-4fdf99ab2936/go.mod h1:r1VsdOzOPt1ZSrGZWFoNhsAedKnEd6r9Np1+5blZCWk=
-github.com/mitchellh/go-ps v0.0.0-20190716172923-621e5597135b h1:9+ke9YJ9KGWw5ANXK6ozjoK47uI3uNbXv4YVINBnGm8=
-github.com/mitchellh/go-ps v0.0.0-20190716172923-621e5597135b/go.mod h1:r1VsdOzOPt1ZSrGZWFoNhsAedKnEd6r9Np1+5blZCWk=
 github.com/oxtoacart/bpool v0.0.0-20150712133111-4e1c5567d7c2 h1:CXwSGu/LYmbjEab5aMCs5usQRVBGThelUKBNnoSOuso=
 github.com/oxtoacart/bpool v0.0.0-20150712133111-4e1c5567d7c2/go.mod h1:L3UMQOThbttwfYRNFOWLLVXMhk5Lkio4GGOtw5UrxS0=
 github.com/oxtoacart/bpool v0.0.0-20190530202638-03653db5a59c h1:rp5dCmg/yLR3mgFuSOe4oEnDDmGLROTvMragMUXpTQw=

pkg/standalone/launcher_linux.go

@@ -25,7 +25,7 @@ import (
 
 	"0xacab.org/leap/bitmask-vpn/pkg/config"
 	"0xacab.org/leap/bitmask-vpn/pkg/standalone/bonafide"
-	"github.com/mitchellh/go-ps"
+	"github.com/keybase/go-ps"
 )
 
 const (

pkg/systray/pid.go

@@ -11,7 +11,7 @@ import (
 	"syscall"
 
 	"0xacab.org/leap/bitmask-vpn/pkg/config"
-	"github.com/mitchellh/go-ps"
+	"github.com/keybase/go-ps"
 )
 
 var pidFile = filepath.Join(config.Path, "systray.pid")