to resolve and what the merge is all about:
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-$ git merge "Merge work in mybranch" HEAD mybranch
+$ git merge -m "Merge work in mybranch" mybranch
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where the first argument is going to be used as the commit message if
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$ git checkout mybranch
-$ git merge "Merge upstream changes." HEAD master
+$ git merge -m "Merge upstream changes." master
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This outputs something like this (the actual commit object names
'commit-fix' next, like this:
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-$ git merge 'Merge fix in diff-fix' master diff-fix
-$ git merge 'Merge fix in commit-fix' master commit-fix
+$ git merge -m 'Merge fix in diff-fix' diff-fix
+$ git merge -m 'Merge fix in commit-fix' commit-fix
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Which would result in: