Don't close fds when executing programs
Don't close fds when executing programs

This is basically the same as #1612 just for new new Popen_safe_legacy().

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