Update johntheripper.py: Revert AFTER_COMMANDS

Revert to trustedsec@1c7d45b. This change was lost in moving johntheripper.py from a prior folder (trustedsec@6566bd3). 

This is also the first time I've suggested using backticks (for `nproc`). It worked in my local testing, but I could've missed an error message from `make`, I suppose.

modules/password-recovery/johntheripper.py

@@ -23,7 +23,7 @@
 DEBIAN="git libgmp3-dev git lzip gcc-multilib make m4 mingw-w64"
 
 # COMMANDS TO RUN AFTER
-AFTER_COMMANDS="cd {INSTALL_LOCATION}src,./configure,make"
+AFTER_COMMANDS="cd {INSTALL_LOCATION},cd src,./configure && make -j `nproc` && make install,cd {INSTALL_LOCATION},cp -a run/* {INSTALL_LOCATION},rm -rf run/"
 
 
 # DONT RUN AFTER COMMANDS ON UPDATE