vim: Import v8.0.0271

* 8.0.0271: may get ml_get error when :tcldo deletes lines
* 8.0.0270: may get ml_get error when :rubydo deletes lines
* 8.0.0269: may get ml_get error when :perldo deletes lines
* 8.0.0268: may get ml_get error when :luado deletes lines
* 8.0.0267: channel test sometimes fails on Mac
* 8.0.0266: compiler warning for using uninitialized variable
* 8.0.0265: may get ml_get error when :pydo deletes lines
* 8.0.0264: memory error reported by ubsan
* 8.0.0263: Farsi support is not tested enough
* 8.0.0262: Farsi support is barely tested
* 8.0.0261: not enough test coverage for eval functions
* 8.0.0260: build fails with tiny features
* 8.0.0259: tab commands do not handle count correctly
* 8.0.0258: mksession test leaves file behind

gitlog.txt

@@ -1 +1 @@
-* 8.0.0257: test file missing in distribution\n* Update runtime files.\n* 8.0.0256: missing changes to one file breaks test\n* 8.0.0255: setpos() does not use the buffer argument for all marks\n* 8.0.0254: error message of assert functions is sometimes incomplete\n* 8.0.0253: error when loading session if winminheight is 2\n* 8.0.0252: not properly recognizing word characters between 128 and 255\n* 8.0.0251: not easy to select Python 2 or 3\n* 8.0.0250: virtcol() does not work well for multi-byte characters
+* 8.0.0271: may get ml_get error when :tcldo deletes lines\n* 8.0.0270: may get ml_get error when :rubydo deletes lines\n* 8.0.0269: may get ml_get error when :perldo deletes lines\n* 8.0.0268: may get ml_get error when :luado deletes lines\n* 8.0.0267: channel test sometimes fails on Mac\n* 8.0.0266: compiler warning for using uninitialized variable\n* 8.0.0265: may get ml_get error when :pydo deletes lines\n* 8.0.0264: memory error reported by ubsan\n* 8.0.0263: Farsi support is not tested enough\n* 8.0.0262: Farsi support is barely tested\n* 8.0.0261: not enough test coverage for eval functions\n* 8.0.0260: build fails with tiny features\n* 8.0.0259: tab commands do not handle count correctly\n* 8.0.0258: mksession test leaves file behind