[Fix] `nvm debug`: Fix sed syntax error in nvm_command_info()

nvm.sh

@@ -48,7 +48,7 @@ nvm_command_info() {
   local INFO
   COMMAND="${1}"
   if type "${COMMAND}" | nvm_grep -q hashed; then
-    INFO="$(type "${COMMAND}" | command sed -E 's/\(|)//g' | command awk '{print $4}')"
+    INFO="$(type "${COMMAND}" | command sed -E 's/\(|\)//g' | command awk '{print $4}')"
   elif type "${COMMAND}" | nvm_grep -q aliased; then
     INFO="$(which "${COMMAND}") ($(type "${COMMAND}" | command awk '{ $1=$2=$3=$4="" ;print }' | command sed -e 's/^\ *//g' -Ee "s/\`|'//g" ))"
   elif type "${COMMAND}" | nvm_grep -q "^${COMMAND} is an alias for"; then

test/fast/Unit tests/nvm_command_info

@@ -38,3 +38,11 @@ WGET_EXPECTED_INFO="$(type wget)"
 [ "${WGET_COMMAND_INFO}" = "${WGET_EXPECTED_INFO}" ] || die "wget command info wrong(stage 3), expected: '${WGET_EXPECTED_INFO}', got '${WGET_COMMAND_INFO}'"
 
 cleanup
+
+# 4. nvm_command_info() should not have standard error
+nvm_command_info ls   2>&1 >/dev/null | grep . && die "\`nvm_command_info ls\`   should not return standard error message(stage 4)"
+nvm_command_info rm   2>&1 >/dev/null | grep . && die "\`nvm_command_info rm\`   should not return standard error message(stage 4)"
+nvm_command_info git  2>&1 >/dev/null | grep . && die "\`nvm_command_info git\`  should not return standard error message(stage 4)"
+nvm_command_info grep 2>&1 >/dev/null | grep . && die "\`nvm_command_info grep\` should not return standard error message(stage 4)"
+
+cleanup