change sed command to be posix compliant

The command \+ in sed is non-portable. The posix compliant version of
this command is \{1,\}

This change allows this script to run on a mac too (which uses BSD sed)

See https://riptutorial.com/sed/topic/9436/bsd-macos-sed-vs--gnu-sed-vs--the-posix-sed-specification

Signed-off-by: John Hunkins <[email protected]>

Author: jchunkins

scripts/copy_crds.sh

@@ -10,5 +10,5 @@ CRD_PATH="${SCRIPT_ROOT}/vendor/github.com/operator-framework/api/crds"
 rm "${SCRIPT_ROOT}"/deploy/chart/crds/*.yaml
 for f in "${CRD_PATH}"/*.yaml ; do
     echo "copying ${f}"
-    cp "${f}" "${SCRIPT_ROOT}/deploy/chart/crds/0000_50_olm_00-$(basename "$f" | sed 's/^.*_\([^.]\+\)\.yaml/\1.crd.yaml/')"
+    cp "${f}" "${SCRIPT_ROOT}/deploy/chart/crds/0000_50_olm_00-$(basename "$f" | sed 's/^.*_\([^.]\{1,\}\)\.yaml/\1.crd.yaml/')"
 done