correct all doctests to account for new whitespace printing

[vtjnash]

This is an automated update of all doctests to make them passing (esp. following the RIP caused by #20288).

If there's other outstanding work-in-progess (or just a general need to update them again), the following patch seems to get 99+% accuracy: After applying this do doc/deps/v0.6/Documenter.jl, run it with:

cd doc && ../julia --color=no make.jl -- doctest

diff --git a/src/DocChecks.jl b/src/DocChecks.jl
index 8772122..c79ec90 100644
--- a/src/DocChecks.jl
+++ b/src/DocChecks.jl
@@ -319,6 +319,16 @@ end
 import .Utilities.TextDiff
 
 function report(result::Result, str, doc::Documents.Document)
+    if true
+        open(Base.find_source_file(result.file), "r+") do f
+            content = readstring(f)
+            seekstart(f)
+            truncate(f, 0)
+            content = replace(content, result.output, str)
+            write(f, content)
+        end
+        return
+    end
     local buffer = IOBuffer()
     println(buffer, "=====[Test Error]", "="^30)
     println(buffer)

[fredrikekre]

You are a hero. 💯

[KristofferC]

Thanks a lot for this. So should we try to get the current doctests merged first and then rerun this or merge this and rebase the doctests?

[KristofferC]

I'm gonna go ahead and merge this now (a bit quicker than normally) so that work can continue on doctests. Updating should be easy just be running @vtjnash script.