correcting typos

ci/install_compilers.sh

@@ -58,5 +58,5 @@ for compiler_hash in $(echo ${hashes}); do
     spack/bin/spack compiler find \
         --scope system \
         ${location} \
-        ${location}/intel/latest # hack to find intel compilers...
+        ${location}/compiler/latest # hack to find intel compilers...
 done

spack.yaml

@@ -51,7 +51,7 @@ spack:
 
   concretizer:
     unify: when_possible
-    duplicates: none
+    duplicates: "none"
 
   view:
     default: