Fix PSU when using a custom Certificate Authority (CA)

With the HTTPIE_VERIFY_SSL environment variable set with a path, e.g.
HTTPIE_VERIFY_SSL=/etc/ssl/certs/ca-certificates.crt

For more information, see:
https://curl.se/docs/manpage.html#--cacert

CHANGELOG.md

@@ -8,6 +8,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 - Add `linux/arm/v7` architecture to support Raspberry Pi
 
+### Fixed
+- `psu` was unusable when using a custom <abbr title="Certificate Authority">CA</abbr>, with the `HTTPIE_VERIFY_SSL` env
+
 ## [1.3.0-beta.1] - 2021-11-30
 ### Added
 - Docker images are now multi-architecture (`linux/amd64` and `linux/arm64` 🦾)

psu

@@ -948,7 +948,7 @@ curl_wrapper() {
     $curl_fail_params \
     --header "Content-Type: application/json" \
     --silent \
-    $(if [ "$HTTPIE_VERIFY_SSL" == "no" ]; then echo --insecure; else $(if [ -f "$HTTPIE_VERIFY_SSL" ]; then echo --cacert "$HTTPIE_VERIFY_SSL"; else echo ''; fi); fi) \
+    $(if [ "$HTTPIE_VERIFY_SSL" == "no" ]; then echo --insecure; elif [ -f "$HTTPIE_VERIFY_SSL" ]; then echo --cacert "$HTTPIE_VERIFY_SSL"; else echo ''; fi) \
     "$@")"
 
   result_exit_code="$?"