vis: also lookup Lua support files relative to the binary location

This simplifies deployment of vis on remote systems without root
access. The idea is to extract a statically linked binary together with
the lexer syntax files into some directory, adjust $PATH to include it
and have everything just work.

For now this uses /proc/self/exe and thus only works on Linux based
systems.

1 files changed, 3 insertions, 1 deletions

diff --git a/vis.1 b/vis.1
index 4aafd4e..b655921 100644
--- a/vis.1
+++ b/vis.1
@@ -24,7 +24,9 @@ Defaults (in this order) to:
 .RS
 .RS
 .TP
-.B  $XDG_CONFIG_HOME/vis
+The location of the vis binary
+.TP
+.B $XDG_CONFIG_HOME/vis
 where
 .B $XDG_CONFIG_HOME
 refers to