Separate specfile generation from copr triggering

trigger_copr

       | sed "s/^v//"
 }
 
-trigger() {
+mkspec() {
     local self_version
     self_version="slop-build-copr $(git describe --tags)"
     sed -e "
         /^Release/ s|__SLOP_RELEASE__|$Release|
         /^Source0/ s|__SLOP_URLBASE__|$UrlBase|
         /^# spec file/ s|__SLOP_BUILDSCRIPT_VERSION__|$self_version|
-    " <slop.spec.in >"$Tmp/slop.spec"
-    copr build --nowait "$CoprProject" "$Tmp/slop.spec"
+    " <slop.spec.in
 }
 
 git_guess() {
         test -n "$Version" || Version=$(last_version)
         test -n "$Release" || Release=1
     fi
+    mkspec >"$Tmp/slop.spec"
     $DryRun && {
         warn "dry mode active, we would build:"
         warn "    at $CoprProject"
         warn "    yielding slop-$Version-$Release.*.rpm"
         exit 1
     }
-    trigger
+    copr build --nowait "$CoprProject" "$Tmp/slop.spec"
     rm -rf "$Tmp"
 }