Jun  3 07:02:37 Tim-Stacks-iMac.local sudo[2717]:    stack : TTY=ttys002 ; PWD=/ ; USER=root ; COMMAND=/usr/bin/env VAR1=foo ls
 key  53:53                                                      ^                                                                            
word  53:58                                                       ^---^                                                                       stack
 val  53:58                                                       ^---^                                                                       stack
pair  53:58                                                       ^---^                                                                       stack
 key  61:64                                                               ^-^                                                                 TTY
 sym  65:72                                                                   ^-----^                                                         ttys002
 val  65:72                                                                   ^-----^                                                         ttys002
pair  61:72                                                               ^---------^                                                         TTY=ttys002
 key  75:78                                                                             ^-^                                                   PWD
path  79:80                                                                                 ^                                                 /
 val  79:80                                                                                 ^                                                 /
pair  75:80                                                                             ^---^                                                 PWD=/
 key  83:87                                                                                     ^--^                                          USER
word  88:92                                                                                          ^--^                                     root
 val  88:92                                                                                          ^--^                                     root
pair  83:92                                                                                     ^-------^                                     USER=root
 key  95:102                                                                                                ^-----^                           COMMAND
path 103:115                                                                                                        ^----------^              /usr/bin/env
wspc 115:116                                                                                                                    ^              
 sym 116:120                                                                                                                     ^--^         VAR1
word 121:124                                                                                                                          ^-^     foo
wspc 124:125                                                                                                                             ^     
word 125:127                                                                                                                              ^^  ls
 val 103:127                                                                                                        ^----------------------^  /usr/bin/env VAR1=foo ls
pair  95:127                                                                                                ^------------------------------^  COMMAND=/usr/bin/env VAR1=foo ls