rpm: Offer --filetriggers with -q

Author: scop

completions/rpm

@@ -151,7 +151,7 @@ _rpm()
                 --fileprovide --filerequire --filesbypkg --info --list
                 --obsoletes --pipe --provides --queryformat= --requires
                 --scripts --suggests --triggers --xml --recommends
-                --supplements"
+                --supplements --filetriggers"
 
             if [[ ${words[@]} == *\ -@(*([^ -])f|-file )* ]]; then
                 # -qf completion