Side-effects of removing (void)

[Gregory Nutt]

The removal of (void) from all functions whose return value has been 
ignored has introduced several new warnings into the build test output.  
For example in lpc3_appinit(), I now see this:

   #  define nsh_spifi_initialize() (OK)
and

   nsh_spifi_initialize();

which now generates a new warning:  "warning: statement with no effect 
[-Wunused-value]"

Greg