print copy-pastable compilation command in case of failure
print copy-pastable compilation command in case of failure

Summary: public
This makes it a bit easier to diagnose errors. This is how it looks:

  infer -- javac IDontExist.java
  "javac" "-g" "-cp" "/home/jul/infer/infer/lib/python/inferlib/../../../../infer/lib/java/processor.jar" "-d" "/home/jul/infer/examples" "IDontExist.java" "-J-Duser.language=en"

This is how it used to look:

  ['javac', '-g', '-cp', u'/home/jul/code/infer/infer/bin/../lib/java/processor.jar', '-d', '/home/jul/infer/examples', 'IDontExist.java', '-J-Duser.language=en']

Reviewed By: jberdine

Differential Revision: D2631698

fb-gh-sync-id: 09903df

ropas/infer,jsachs/infer,jsachs/infer,blzq/infer,kageiit/infer,kstreee/infer,kageiit/infer,jsachs/infer,kageiit/infer,blzq/infer,kstreee/infer,xennygrimmato/infer,kstreee/infer,jvillard/infer,xennygrimmato/infer,facebook/infer,ryoon/infer,jvillard/infer,ropas/infer,jsachs/infer,kageiit/infer,ryoon/infer,xennygrimmato/infer,facebook/infer,xennygrimmato/infer,xennygrimmato/infer,facebook/infer,ropas/infer,xennygrimmato/infer,kageiit/infer,ryoon/infer,ryoon/infer,jvillard/infer,kageiit/infer,jsachs/infer,ropas/infer,facebook/infer,kstreee/infer,kstreee/infer,ropas/infer,facebook/infer,jvillard/infer,blzq/infer,facebook/infer,jvillard/infer,kstreee/infer,xennygrimmato/infer,blzq/infer,kageiit/infer,ryoon/infer,ryoon/infer,blzq/infer,jsachs/infer,facebook/infer,blzq/infer,jvillard/infer,ropas/infer,jvillard/infer