[PATCH] data_smart: Drop default expand=False to getVar [API change]

[Richard Purdie <richard.purdie@linuxfoundation.org>]

At some point in the future, getVar should expand by default. To get
there from the current position, we need a period of time where the
expand parameter is mandatory.

This patch starts that process. Clear errors will result from any code
which doesn't provide this. Layers can be fixed with an expression
like:

sed -e 's:\(\.getVar([^,()]*, [^,()]*\)):\1, False):g' -i `grep -ril getVar *`

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

diff --git a/bitbake/lib/bb/data_smart.py b/bitbake/lib/bb/data_smart.py
index 8c3e9ef..79bec1b 100644
--- a/bitbake/lib/bb/data_smart.py
+++ b/bitbake/lib/bb/data_smart.py
@@ -566,7 +566,7 @@ class DataSmart(MutableMapping):
                 if len(shortvar) == 0:
                     override = None
 
-    def getVar(self, var, expand=False, noweakdefault=False, parsing=False):
+    def getVar(self, var, expand, noweakdefault=False, parsing=False):
         return self.getVarFlag(var, "_content", expand, noweakdefault, parsing)
 
     def renameVar(self, key, newkey, **loginfo):