Remove trailing whitespace from some files.

The prevailing style seems to not have trailing whitespace, but a few
lines do. This is mostly in the perlasm files, but a few C files got
them after the reformat. This is the result of:

  find . -name '*.pl' | xargs sed -E -i '' -e 's/( |'$'\t'')*$//'
  find . -name '*.c' | xargs sed -E -i '' -e 's/( |'$'\t'')*$//'
  find . -name '*.h' | xargs sed -E -i '' -e 's/( |'$'\t'')*$//'

Then bn_prime.h was excluded since this is a generated file.

Note mkerr.pl has some changes in a heredoc for some help output, but
other lines there lack trailing whitespace too.

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>

apps/cms.c

diff --git a/apps/cms.c b/apps/cms.c
index 133dc02..21f0961 100644
--- a/apps/cms.c
+++ b/apps/cms.c
@@ -146,7 +146,7 @@
      "Do not load certificates from the default certificates directory"},
     {"content", OPT_CONTENT, '<',
      "Supply or override content for detached signature"},
-    {"print", OPT_PRINT, '-', 
+    {"print", OPT_PRINT, '-',
      "For the -cmsout operation print out all fields of the CMS structure"},
     {"secretkey", OPT_SECRETKEY, 's'},
     {"secretkeyid", OPT_SECRETKEYID, 's'},

apps/smime.c

diff --git a/apps/smime.c b/apps/smime.c
index 1f4091f..0c8660f 100644
--- a/apps/smime.c
+++ b/apps/smime.c
@@ -89,7 +89,7 @@
     {"no-CApath", OPT_NOCAPATH, '-',
      "Do not load certificates from the default certificates directory"},
     {"resign", OPT_RESIGN, '-', "Resign a signed message"},
-    {"nochain", OPT_NOCHAIN, '-', 
+    {"nochain", OPT_NOCHAIN, '-',
      "set PKCS7_NOCHAIN so certificates contained in the message are not used as untrusted CAs" },
     {"nosmimecap", OPT_NOSMIMECAP, '-', "Omit the SMIMECapabilities attribute"},
     {"stream", OPT_STREAM, '-', "Enable CMS streaming" },

apps/speed.c

diff --git a/apps/speed.c b/apps/speed.c
index e6bdc5d..e9dc8a9 100644
--- a/apps/speed.c
+++ b/apps/speed.c
@@ -1187,8 +1187,8 @@
                 continue;
 #endif
 
-            ret = ASYNC_start_job(&loopargs[i].inprogress_job, 
-                    loopargs[i].wait_ctx, &job_op_count, loop_function, 
+            ret = ASYNC_start_job(&loopargs[i].inprogress_job,
+                    loopargs[i].wait_ctx, &job_op_count, loop_function,
                     (void *)(loopargs + i), sizeof(loopargs_t));
             switch (ret) {
             case ASYNC_PAUSE: