results in "inf"
			 or "-inf" with %f (INF or -INF with %F).
			 "0.0 / 0.0" results in "nan" with %f (NAN with %F).
			Example: >vim
				echo printf("%.2f", 12.115)
<				12.12
			Note that roundoff depends on the system libraries.
			Use |round()| when in doubt.

							*printf-e* *printf-E*
		e E	The Float argument is converted into a string of the
			form 1.234e+03 or 1.234E+03 when using 'E'.  The
			precision specifies the number of digits after the
			decimal point, like with 'f'.

							*printf-g* *printf-G*
		g G	The Float argument is converted like with 'f' if the
			value is between 0.001 (inclusive) and 10000000.0
			(exclusive).  Otherwise 'e' is used for 'g' and 'E'
			for 'G'.  When no precision is specified superfluous
			zeroes and '+' signs are removed, except for the zero
			immediately after the decimal point.  Thus 10000000.0
			results in 1.0e7.

							*printf-%*
		%	A '%' is written.  No argument is converted.  The
			complete conversion specification is "%%".

		When a Number argument is expected a String argument is also
		accepted and automatically converted.
		When a Float or String argument is expected a Number argument
		is also accepted and automatically converted.
		Any other argument type results in an error message.

							*E766* *E767*
		The number of {exprN} arguments must exactly match the number
		of "%" items.  If there are not sufficient or too many
		arguments an error is given.  Up to 18 arguments can be used.

							*printf-$*
		In certain languages, error and informative messages are
		more readable when the order of words is different from the
		corresponding message in English. To accommodate translations
		having a different word order, positional arguments may be
		used to indicate this. For instance: >vim

		    #, c-format
		    msgid "%s returning %s"
		    msgstr "waarde %2$s komt terug van %1$s"
<
		In this example, the sentence has its 2 string arguments
		reversed in the output. >vim

		    echo printf(
			"In The Netherlands, vim's creator's name is: %1$s %2$s",
			"Bram", "Moolenaar")
<		    In The Netherlands, vim's creator's name is: Bram Moolenaar >vim

		    echo printf(
			"In Belgium, vim's creator's name is: %2$s %1$s",
			"Bram", "Moolenaar")
<		    In Belgium, vim's creator's name is: Moolenaar Bram

		Width (and precision) can be specified using the '*' specifier.
		In this case, you must specify the field width position in the
		argument list. >vim

		    echo printf("%1$*2$.*3$d", 1, 2, 3)
<		    001 >vim
		    echo printf("%2$*3$.*1$d", 1, 2, 3)
<		      2 >vim
		    echo printf("%3$*1$.*2$d", 1, 2, 3)
<		    03 >vim
		    echo printf("%1$*2$.*3$g", 1.4142, 2, 3)
<		    1.414

		You can mix specifying the width and/or precision directly
		and via positional arguments: >vim

		    echo printf("%1$4.*2$f", 1.4142135, 6)
<		    1.414214 >vim
		    echo printf("%1$*2$.4f", 1.4142135, 6)
<		    1.4142 >vim
		    echo printf("%1$*2$.*3$f", 1.4142135, 6, 2)
<		      1.41

		You will get an overflow error |E1510|, when the field-width
		or precision will result in a string longer than 1 MB
		(1024*1024 = 1048576) chars.

							*E1500*
		You cannot mix positional and non-positional arguments: >vim
		    echo printf("%s%1$s", "One", "Two")
<		    E1500: Cannot mix positional and non-positional arguments:
		    %s%1$s

							*E1501*
		You cannot skip a positional argument in a format string: >vim
		    echo printf("%3$s%1$s", "One", "Two", "Three")
<		    E1501: format argument 2 unused in $-style format:
		    %3$s%1$s

							*E1502*
		You can re-use a [field-width] (or [precision]) argument: >vim
		    echo printf("%1$d at width %2$d is: %01$*2$d", 1, 2)
<		    1 at width 2 is: 01

		However, you can't use it as a different type: >vim
		    echo printf("%1$d at width %2$ld is: %01$*2$d", 1, 2)
<		    E1502: Positional argument 2 used as field width reused as
		    different type: long int/int

							*E1503*
		When a positional argument is used, but not the correct