minstall: Do not delete dst files when installing a directory
minstall: Do not delete dst files when installing a directory

do_copyfile() already takes the decision to delete or preserve them.

Also do not append a confusing '.' in log messages that finish by a file
path.

QuLogic/meson,mesonbuild/meson,mesonbuild/meson,jpakkane/meson,becm/meson,jpakkane/meson,mesonbuild/meson,mesonbuild/meson,becm/meson,QuLogic/meson,mesonbuild/meson,mesonbuild/meson,becm/meson,jpakkane/meson,QuLogic/meson,pexip/meson,pexip/meson,mesonbuild/meson,becm/meson,pexip/meson,jpakkane/meson,QuLogic/meson,pexip/meson,mesonbuild/meson,pexip/meson,becm/meson,becm/meson,pexip/meson,QuLogic/meson,jpakkane/meson,pexip/meson,QuLogic/meson,mesonbuild/meson,jpakkane/meson,becm/meson,becm/meson,pexip/meson,pexip/meson,jpakkane/meson,becm/meson,QuLogic/meson,jpakkane/meson,becm/meson,mesonbuild/meson,jpakkane/meson,pexip/meson,QuLogic/meson,QuLogic/meson