- Add text_gap option to allow adjustment of vertical gap between

barcode and text
- EMF/EPS/SVG/GUI: ignore BOLD_TEXT for EAN/UPC
- DAFT: up max to 250 chars
- EMF/EPS/SVG: fix addon bars placement/length when text hidden
- Qt backend: use `QFontMetrics::horizontalAdvance()` rather than
  `boundingRect()` to calc text width (seems to be more accurate)
- library: make printf/sprintf() format arg always literal string
- output: fix errtxt nos clash;
  use array for `out_upcean_split_text()` text parts
- raster/vector: smallify addon text printing logic
- frontend: warn if output file and direct options both given;
  add TODO note about `CommandLineToArgvW()` loading shell32.dll
- manual: put HRT options in own section

docs/zint.1.pmd

@@ -1,6 +1,6 @@
 % ZINT(1) Version 2.12.0.9
 %
-% January 2023
+% February 2023
 
 # NAME
 
@@ -206,7 +206,7 @@ Paintbrush (`PCX`), Portable Network Format (`PNG`), Scalable Vector Graphic (`S
 
 `-i`, `--input=FILE`
 
-:   Read the input data from *FILE*.
+:   Read the input data from *FILE*. Specify a single hyphen (`-`) for *FILE* to read from stdin.
 
 `--init`
 
@@ -353,6 +353,11 @@ Paintbrush (`PCX`), Portable Network Format (`PNG`), Scalable Vector Graphic (`S
 
 :   Display the table of barcode types (symbologies). The numbers or names can be used with `-b` | `--barcode`.
 
+`--textgap=NUMBER`
+
+:   Adjust the gap between the barcode and the Human Readable Text (HRT). *NUMBER* is in multiples of the X-dimension,
+    and may be floating-point. Maximum is 5; zero results in the default being used.
+
 `--vers=INTEGER`
 
 :   Set the symbol version (size, check digits, other options) to *INTEGER*. The meaning is symbol-specific.