lib/oelite: Fixup util.shcmd() method
lib/oelite: Fixup util.shcmd() method

Signed-off-by: Esben Haabendal <esben.haabendal@prevas.dk>

(refs #379)

hundeboll/core,sknsean/core,hundeboll/core,sknsean/core,hundeboll/core,sknsean/core,hundeboll/core,diorcety/oe-lite-core,sknsean/core,diorcety/oe-lite-core,sknsean/core