Downstream report: 

https://bugzilla.redhat.com/show_bug.cgi?id=701550

When xfce4-screenshooter-plugin is not installed and you hit prnt scrn key to take a screenshot, xfce4-settings-helper crashes. ;( Should this package be a dependency? In any case crashing doesn't seem ideal there. 

From the stack trace: 

Core was generated by `xfce4-settings-helper --display :0.0 --sm-client-id 220b1c1e9-6880-42f2-89cc-3f'.
Program terminated with signal 6, Aborted.
#0  0x000000322d636415 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
64	  return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig);

Thread 1 (Thread 0x7fe66c8ed9a0 (LWP 15200)):
#0  0x000000322d636415 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
        resultvar = 0
        pid = 15200
        selftid = 15200
#1  0x000000322d637d2b in abort () at abort.c:92
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x154fae0, sa_sigaction = 0x154fae0}, sa_mask = {__val = {22523856, 215509658608, 140627640587472, 22064819, 215501326005, 177, 22523856, 4294967295, 22346464, 22064819, 2, 215508670136, 0, 0, 215508673696, 0}}, sa_flags = 752934612, sa_restorer = 0x3000000001}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x000000322d24b96e in g_logv (log_domain=0x40a837 "xfce4-settings-helper", log_level=<optimized out>, format=0x40b340 "Failed to spawn command \"%s\": %s", args1=0x7fff0cb30238) at gmessages.c:557
        depth = <optimized out>
        domain = 0x0
        data = 0x0
        log_func = 0x322d24ab00 <g_log_default_handler>
        domain_fatal_mask = <optimized out>
        masquerade_fatal = <optimized out>
        test_level = <optimized out>
        was_fatal = 0
        was_recursion = 0
        i = <optimized out>