glue 1.5.0

Breaking changes

• Long deprecated function collapse() has been removed (#213)

New functions and arguments

• New glue_sql_collapse() function to collapse inputs and return a DBI::SQL() object (#103).

• glue() gains a new .comment argument, to control the comment character (#193).

• glue() gains a new .null argument, to control the value to replace NULL values with (#217, @echasnovski).

Bugfixes and minor changes

• sql_quote_transformer() is now allows whitespace after the trailing * (#218).
• compare_proxy.glue() method defined so glue objects can be compared to strings in testthat 3e without errors (#212)
• print.glue() no longer prints an empty newline for 0 length inputs (#214)
• Unterminated comments in glue expression now throw an error (#227, @gaborcsardi)
• Unterminated quotes in glue expressions now throw an error (#226, @gaborcsardi)