Update apparmor profile for usrmerge

https://bugs.launchpad.net/ubuntu/+source/i2p/+bug/1784023

debian/apparmor/usr.bin.i2prouter

@@ -16,16 +16,16 @@
   @{PROC}/uptime                        r,
   @{PROC}/sys/kernel/pid_max            r,
 
-  /bin/{,b,d}ash                        rix,
-  /bin/cat                              rix,
-  /bin/grep                             rix,
-  /bin/mkdir                            rix,
-  /bin/ps                               rUx,
-  /bin/rm                               rix,
-  /bin/sed                              rix,
-  /bin/sleep                            rix,
-  /bin/uname                            rix,
-  /bin/which                            rix,
+  /{usr/,}bin/{,b,d}ash                 rix,
+  /{usr/,}bin/cat                       rix,
+  /{usr/,}bin/grep                      rix,
+  /{usr/,}bin/mkdir                     rix,
+  /{usr/,}bin/ps                        rUx,
+  /{usr/,}bin/rm                        rix,
+  /{usr/,}bin/sed                       rix,
+  /{usr/,}bin/sleep                     rix,
+  /{usr/,}bin/uname                     rix,
+  /{usr/,}bin/which                     rix,
   /etc/default/i2p                      r,
   /etc/lsb-release                      r,