fix(cli): fix prereq_yml test on mac

This fix will resolve apache/openserverless#46

Author: d4rkstar

tests/prereq_yml.bats

@@ -28,38 +28,38 @@ setup() {
     OS=linux ARCH=amd64
     mkdir -p _bin/$OS-$ARCH
     run env __OS=$OS __ARCH=$ARCH task -t prereq/olaris/prereq.yml -d _bin/$OS-$ARCH all
-    find _bin/$OS-$ARCH -type f | xargs file | grep ELF | grep x86-64 | wc -l | tee _count
+    find _bin/$OS-$ARCH -type f | xargs file | grep ELF | grep x86-64 | wc -l | xargs | tee _count
     assert_equal "$(cat _count)" $COUNT
 }
 
 @test "OS=linux ARCH=arm64"  {
     OS=linux ARCH=arm64
     mkdir -p _bin/$OS-$ARCH
     run env __OS=$OS __ARCH=$ARCH task -t prereq/olaris/prereq.yml -d _bin/$OS-$ARCH  all
-    find _bin/$OS-$ARCH | xargs file | grep ELF | grep ARM | wc -l | tee _count
+    find _bin/$OS-$ARCH -type f | xargs file | grep ELF | grep ARM | wc -l | xargs | tee _count
     assert_equal "$(cat _count)" $COUNT
 }
 
 @test "OS=darwin ARCH=amd64"  {
     OS=darwin ARCH=amd64
     mkdir -p _bin/$OS-$ARCH
     run env __OS=$OS __ARCH=$ARCH task -t prereq/olaris/prereq.yml -d _bin/$OS-$ARCH all
-    find _bin/$OS-$ARCH | xargs file | grep Mach-O | grep x86_64 | wc -l | tee _count
+    find _bin/$OS-$ARCH -type f | xargs file | head -n 1 | grep Mach-O | grep x86_64 | wc -l | xargs | tee _count
     assert_equal "$(cat _count)" $COUNT
 }
 
 @test "OS=darwin ARCH=arm64"  {
     OS=darwin ARCH=arm64
     mkdir -p _bin/$OS-$ARCH
     run env __OS=$OS __ARCH=$ARCH task -t prereq/olaris/prereq.yml -d _bin/$OS-$ARCH all
-    find _bin/$OS-$ARCH | xargs file | grep Mach-O | grep arm64 | wc -l | tee _count
+    find _bin/$OS-$ARCH -type f | xargs file | head -n 1 | grep Mach-O | grep arm64 | wc -l | xargs | tee _count
     assert_equal "$(cat _count)" $COUNT
 }
 
 @test "OS=windows ARCH=amd64"  {
     OS=windows ARCH=amd64
     mkdir -p _bin/$OS-$ARCH
     run env __OS=$OS __ARCH=$ARCH task -t prereq/olaris/prereq.yml -d _bin/$OS-$ARCH __OS=$OS __ARCH=$ARCH all
-    find _bin/$OS-$ARCH | xargs file | grep PE32  | wc -l | tee _count
+    find _bin/$OS-$ARCH -type f | xargs file | grep PE32  | wc -l | xargs | tee _count
     assert_equal "$(cat _count)" $COUNT
 }