all: fix codespell errors

Reviewed-by: Jay Satiro
Reviewed-by: Daniel Stenberg
Closes https://github.com/curl/curl/pull/5452

tests/data/test1238

@@ -27,7 +27,7 @@ tftp
 # Always kill the TFTP server to not affect following tests, due
 # to this test potentially keeping the TFTP server busy waiting
 # for another 5 seconds after this test has already terminated.
-# On some plattforms and CI not enough time passes between this
+# On some platforms and CI not enough time passes between this
 # test and the next tests 1242 and 1243, causing them to fail.
 <killserver>
 tftp

tests/options-scan.pl

@@ -23,7 +23,7 @@
 #
 #
 # - Get all options mentioned in the $cmddir.
-# - Make sure they're all mentioned inthe $opts document
+# - Make sure they're all mentioned in the $opts document
 # - Make usre that the version in $opts matches the version in the file in
 #   $cmddir
 #

tests/runtests.1

@@ -43,7 +43,7 @@ runs all available tests except number 66.
 Prefix a test number with a tilde (~) to still run it, but ignore the results.
 
 It is also possible to specify tests based on a keyword describing the test(s)
-to run, like "FTPS". The keywords are strings used in the indiviual tests.
+to run, like "FTPS". The keywords are strings used in the individual tests.
 
 You can also specify keywords with a leading exclamation point and the keyword
 or phrase, like "!HTTP NTLM auth" to run all tests \fBexcept\fP those using

tests/secureserver.pl

@@ -344,7 +344,7 @@ if($tstunnel_windows) {
     # Put an "exec" in front of the command so that the child process
     # keeps this child's process ID by being tied to the spawned shell.
     exec("exec $cmd") || die "Can't exec() $cmd: $!";
-    # exec() will create a new process, but ties the existance of the
+    # exec() will create a new process, but ties the existence of the
     # new process to the parent waiting perl.exe and sh.exe processes.
 
     # exec() should never return back here to this process. We protect

tests/server/sockfilt.c

@@ -75,7 +75,7 @@
  * structured and well behaved manner to achieve proper program cleanup and
  * termination.
  *
- * Even with the above mechanism implemented it is worthwile to note that
+ * Even with the above mechanism implemented it is worthwhile to note that
  * other signals might still be received, or that there might be systems on
  * which it is not possible to trap and ignore some of the above signals.
  * This implies that for increased portability and reliability the program
@@ -687,7 +687,7 @@ static int select_ws(int nfds, fd_set *readfds, fd_set *writefds,
 
   /* loop over the handles in the input descriptor sets */
   nfd = 0; /* number of handled file descriptors */
-  nth = 0; /* number of interal waiting threads */
+  nth = 0; /* number of internal waiting threads */
   nws = 0; /* number of handled WINSOCK sockets */
   for(fd = 0; fd < nfds; fd++) {
     wsasock = curlx_sitosk(fd);

tests/sshserver.pl

@@ -1120,7 +1120,7 @@ if ($sshdid =~ /OpenSSH-Windows/) {
     # Put an "exec" in front of the command so that the child process
     # keeps this child's process ID by being tied to the spawned shell.
     exec("exec $cmd") || die "Can't exec() $cmd: $!";
-    # exec() will create a new process, but ties the existance of the
+    # exec() will create a new process, but ties the existence of the
     # new process to the parent waiting perl.exe and sh.exe processes.
 
     # exec() should never return back here to this process. We protect