bitbake: data: Ensure functions are defined in a deterministic order

When writing functions into shell scripts, write then in a deterministic
order. This is unlikely to affect anything at runtime but it does change
the signatures of the generated useradd postinst scripts in OE-Core and is
a good thing to be consistent about in general.

(Bitbake rev: 8a181dc8f3c8c9c9885ea3011cb234321a296d92)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/data.py

@@ -226,7 +226,7 @@ def emit_func(func, o=sys.__stdout__, d = init()):
         deps = newdeps
         seen |= deps
         newdeps = set()
-        for dep in deps:
+        for dep in sorted(deps):
             if d.getVarFlag(dep, "func", False) and not d.getVarFlag(dep, "python", False):
                emit_var(dep, o, d, False) and o.write('\n')
                newdeps |=  bb.codeparser.ShellParser(dep, logger).parse_shell(d.getVar(dep))