Npp crashes with an exception when uncommenting a block-comment where the block comment string is not defined with "commentLine"-entry in langs.xml.
This bug was reported for SQL-files in bugreport #4191.
Note: Apparently, for SQL files Scintilla highlightes the "--" string as comment, even when not defined in langs.xml!!??
Coding error in function doBlockComment() corrected and SQL "commentLine"-entry added in langs.model.xml.
Patch NppPatch_6.3_UncommentSQLBugFix.patch is based on Npp 6.3 (SVN 1019)