Fix dlopen flags writing

Author: staticfloat

src/AutoBuild.jl

@@ -1183,7 +1183,7 @@ function build_jll_package(src_name::String,
                     println(io, """
                         # Manually `dlopen()` this right now so that future invocations
                         # of `ccall` with its `SONAME` will find this path immediately.
-                        global $(vp)_handle = dlopen($(vp)_path$(BinaryBuilderBase.dlopen_flags_str(p)))
+                        global $(vp)_handle = dlopen($(vp)_path, $(BinaryBuilderBase.dlopen_flags_str(p)))
                         push!(LIBPATH_list, dirname($(vp)_path))
                     """)
                 elseif p isa ExecutableProduct