Convert 'int i' to 'size_t i' in tests/ files

Convert the type of loop iterators named 'i', 'j', k',
'ii', 'jj', 'kk', to be 'size_t' instead of 'int' or
'unsigned int', also santizing 'ii', 'jj', 'kk' to use
the normal 'i', 'j', 'k' naming

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>

tests/ssh.c

@@ -28,7 +28,7 @@
 
 int main(int argc, char **argv)
 {
-    int i;
+    size_t i;
     bool failConnect = false; /* Exit -1, with no data on stdout, msg on stderr */
     bool dieEarly = false;    /* Exit -1, with partial data on stdout, msg on stderr */