Incorporate review feedback

Author: odenix

pkl-commons-cli/src/main/kotlin/org/pkl/commons/cli/commands/BaseOptions.kt

@@ -130,7 +130,7 @@ class BaseOptions : OptionGroup() {
     option(
         names = arrayOf("--ca-certificates"),
         metavar = "<path>",
-        help = "Trust CA certificates from the provided file."
+        help = "Only trust CA certificates from the provided file(s)."
       )
       .path()
       .multiple()

pkl-core/src/test/kotlin/org/pkl/core/http/HttpClientTest.kt

@@ -95,15 +95,15 @@ class HttpClientTest {
   }
 
   @Test
-  fun `can load certificates from default location`(@TempDir userHome: Path) {
-    val certFile = userHome.resolve(".pkl")
+  fun `can load certificates from default location`(@TempDir tempDir: Path) {
+    val certFile = tempDir.resolve(".pkl")
       .resolve("cacerts")
       .createDirectories()
       .resolve("certs.pem")
     FileTestUtils.selfSignedCertificate.copyTo(certFile)
 
     assertDoesNotThrow {
-      HttpClientBuilder(userHome).addDefaultCliCertificates().build()
+      HttpClientBuilder(tempDir).addDefaultCliCertificates().build()
     }
   }