Spelling and index corrections

Author: S0AndS0

tests/units/autoload_proompter_callback_channel.vader

@@ -298,7 +298,7 @@ Execute(proompter#callback#channel#StreamToBuffer -- Handles JSON with newlines)
 
 ""
 " {{{
-Execute(proompter#callback#channel#SaveImages -- Saves base64 encoded imagee):
+Execute(proompter#callback#channel#SaveImages -- Saves base64 encoded image):
   " Bash: magick -size 1x1 'xc:rgb(0,0,0)' '/tmp/one-pixel.png'
   " Vim: read! base64 --wrap=0 /tmp/one-pixel.png
   let image_encoded = 'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQAAAAA3bvkkAAAAIGNIUk0AAHomAACAhAAA+gAAAIDoAAB1MAAA6mAAADqYAAAXcJy6UTwAAAACYktHRAAB3YoTpAAAAAd0SU1FB+gKChMpAqfmKGQAAAAKSURBVAjXY2AAAAACAAHiIbwzAAAAJXRFWHRkYXRlOmNyZWF0ZQAyMDI0LTEwLTEwVDE5OjQxOjAxKzAwOjAwUQr9YQAAACV0RVh0ZGF0ZTptb2RpZnkAMjAyNC0xMC0xMFQxOTo0MTowMSswMDowMCBXRd0AAAAodEVYdGRhdGU6dGltZXN0YW1wADIwMjQtMTAtMTBUMTk6NDE6MDErMDA6MDB3QmQCAAAAAElFTkSuQmCC'
@@ -321,7 +321,7 @@ Execute(proompter#callback#channel#SaveImages -- Saves base64 encoded imagee):
 
   let expected_state = deepcopy(state)
 
-  let paths = proompter#callback#channel#SaveImages(0, configurations, state)
+  let paths = proompter#callback#channel#SaveImages(-1, configurations, state)
   sleep 100m
 
   AssertEqual configurations, expected_configurations, 'Unexpected mutation of configurations'