Github user srowen commented on the pull request:
https://github.com/apache/spark/pull/6832#issuecomment-119377246
I thought that would be fine but, yeah it changes the 2.11 in the 2.11
profile to 2.10 on the way back, which is wrong. I fished around a little more
and this seems to work as desired on OS X:
```
sed -e
'1,/<scala\.binary\.version>2.10</s/<scala\.binary\.version>2.10</<scala.binary.version>2.11</'
...
```
That is, use 1 instead of 0, and repeat the pattern. See
http://www.linuxtopia.org/online_books/linux_tool_guides/the_sed_faq/sedfaq4_004.html
and
http://stackoverflow.com/questions/148451/how-to-use-sed-to-replace-only-the-first-occurrence-in-a-file
Do you have GNU sed handy to confirm if that's portable? the page above
suggests it is, since this won't occur on the first line.
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