Descriptionspec: calling delete on a nil map is a no-op
This is language change. It is a backward-compatible
change but for code that relies on a run-time panic
when calling delete on a nil map (unlikely).
Fixes issue 4253.
Patch Set 1 #Patch Set 2 : diff -r 67026ef0e79e https://code.google.com/p/go #Patch Set 3 : diff -r 3af6f955dc02 https://code.google.com/p/go #Patch Set 4 : diff -r 61e3278abfff https://code.google.com/p/go #MessagesTotal messages: 9
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