correct typo

Author: iulusoy

setup-fortran.sh

@@ -535,6 +535,7 @@ install_intel()
   local platform=$1
   local classic=$2
   local install_mkl=$3
+  mkl_subdir=""
   case $platform in
     linux*)
       install_intel_apt $version $classic $install_mkl
@@ -568,8 +569,6 @@ install_intel()
     export CXX="icpx"
   fi
 
-  if 
-
   if $install_mkl; then
     export MKLLIB="$ONEAPI_ROOT/mkl/latest/lib/$mkl_subdir"
     export MKLROOT="$ONEAPI_ROOT/mkl/latest"