c3b416c492
VPP requires bash for all shell scripts. Align shebang lines in build and test scripts to look up the location of bash rather than hard coding '/bin/bash'. Look up the location of bash for makefiles. Type: improvement Change-Id: I23b705d81d60389fa8af61c680cf0abd74f0ea24 Signed-off-by: Tom Jones <thj@freebsd.org>