tools: fix codespell issues

tools/build_perl_modules.in

@@ -140,7 +140,7 @@ my $libs = "$destdir/$prefix/lib:$destdir/$prefix/lib/$Config{archname}";
 
 my $topdir = cwd();
 
-# set an initial value if there isnt one already
+# set an initial value if there isn't one already
 # Need to use PERL5LIB to ensure we get pre-installed mods from earlier
 # tags in the install_order file
 $ENV{PERL5LIB} ||= q{};
@@ -149,8 +149,8 @@ $ENV{PERL5LIB} ||= q{};
 $ENV{PERL_AUTOINSTALL} = "--skipdeps";
 
 # keep a record of how many times a module build is done.  This is so they may
-# be built a second time to include optional prereq's that couldnt
-# previously be built due to circular dependancies
+# be built a second time to include optional prereq's that couldn't
+# previously be built due to circular dependencies
 my %built_modules;
 foreach my $tarball (@tarballs) {
     ( my $dir = $tarball ) =~ s/\.(?:tgz|tar.gz)$//;

tools/p1.pl

@@ -2,7 +2,7 @@
 #
 # Hacked version of the sample code from the perlembedded doco.
 #
-# Only major changes are to separate the compiling and cacheing from 
+# Only major changes are to separate the compiling and caching from
 # the execution so that the cache can be kept in "non-volatile" parent
 # process while the execution is done from "volatile" child processes
 # and that STDOUT is redirected to a file by means of a tied filehandle

tools/tinderbox_build

@@ -133,12 +133,12 @@ sub BuildIt {
 # this fun line added on 2/5/98. do not remove. Translated to english,
 # that's "take any line longer than 1000 characters, and split it into less
 # than 1000 char lines.  If any of the resulting lines is
-# a dot on a line by itself, replace that with a blank line."  
+# a dot on a line by itself, replace that with a blank line."
 # This is to prevent cases where a <cr>.<cr> occurs in the log file.  Sendmail
 # interprets that as the end of the mail, and truncates the log before
 # it gets to Tinderbox.  (terry weismann, chris yeh)
 #
-# This was replaced by a perl 'port' of the above, writen by 
+# This was replaced by a perl 'port' of the above, written by
 # preed@netscape.com; good things: no need for system() call, and now it's
 # all in perl, so we don't have to do OS checking like before.