badwords: fix issues found in scripts and other files

Single pass, not enforced.

Also:
- pyspelling.words: drop `web page`

Closes #19572

.github/scripts/cleancmd.pl

@@ -16,7 +16,7 @@ use warnings;
 my @asyms;
 
 open(S, "<./docs/libcurl/symbols-in-versions")
-    || die "can't find symbols-in-versions";
+    || die "cannot find symbols-in-versions";
 while(<S>) {
     if(/^([^ ]*) /) {
         push @asyms, $1;
@@ -30,7 +30,7 @@ my @aopts = (
     );
 
 open(O, "<./docs/options-in-versions")
-    || die "can't find options-in-versions";
+    || die "cannot find options-in-versions";
 while(<O>) {
     chomp;
     if(/^([^ ]+)/) {
@@ -50,7 +50,7 @@ while(<O>) {
 close(O);
 
 open(C, "<./.github/scripts/spellcheck.curl")
-    || die "can't find spellcheck.curl";
+    || die "cannot find spellcheck.curl";
 while(<C>) {
     if(/^\#/) {
         next;
@@ -99,7 +99,7 @@ sub process {
         # *italics*
         $l =~ s/\*(\S.*?)\*//g;
 
-        # strip out https URLs, we don't want them spellchecked
+        # strip out https URLs, we do not want them spellchecked
         $l =~ s!https://[a-z0-9\#_/.-]+!!gi;
 
         $out .= $l;

.github/scripts/pyspelling.words

@@ -957,7 +957,6 @@ watchOS
 WAV
 WB
 wcurl
-web page
 WebDAV
 WebOS
 webpage