Do not warn on MCA component load failures by default

PKGBUILD

@@ -78,6 +78,9 @@ build() {
     --with-rocm=/opt/rocm
     # all components that link to libraries provided by optdepends must be run-time loadable
     --enable-mca-dso=accelerator_cuda,accelerator_rocm,btl_smcuda,rcache_gpusm,rcache_rgpusm,coll_ucc,scoll_ucc
+    # mpirun should not warn on MCA component load failures by default - usually caused by missing optdepends, which is ok
+    # https://docs.open-mpi.org/en/main/installing-open-mpi/configure-cli-options/installation.html
+    --with-show-load-errors='^accelerator,rcache,coll'
   )
   cd $pkgbase-$pkgver