Changes due to review

Author: bopm

railties/lib/rails/generators/rails/app/templates/docker-entrypoint.tt

@@ -1,17 +1,9 @@
 #!/bin/bash -e
 
 # Enable jemalloc for reduced memory usage and latency.
-jemalloc_found=false
-for lib in /usr/lib/*/libjemalloc.so.2; do
-    if [ -f "$lib" ]; then
-        export LD_PRELOAD="$lib"
-        jemalloc_found=true
-        break
-    fi
-done
-
-if [ "$jemalloc_found" = false ]; then
-    echo "Warning: jemalloc not found"
+if [ -z "${LD_PRELOAD+x}" ]; then
+    LD_PRELOAD=$(find /usr/lib -name libjemalloc.so.2 -print -quit)
+    export LD_PRELOAD
 fi
 
 <% unless skip_active_record? -%>