Use "==0" instead of "!strcmp" etc

For the various string-compare routines (strcmp, strcasecmp, str.*cmp)
use "strcmp()==0" instead of "!strcmp()"

Reviewed-by: Tim Hudson <tjh@openssl.org>
diff --git a/demos/bio/client-arg.c b/demos/bio/client-arg.c
index dc354ca..8507e04 100644
--- a/demos/bio/client-arg.c
+++ b/demos/bio/client-arg.c
@@ -38,7 +38,7 @@
         if (rv > 0)
             continue;
         /* Otherwise application specific argument processing */
-        if (!strcmp(*args, "-connect")) {
+        if (strcmp(*args, "-connect") == 0) {
             connect_str = args[1];
             if (connect_str == NULL) {
                 fprintf(stderr, "Missing -connect argument\n");
diff --git a/demos/bio/client-conf.c b/demos/bio/client-conf.c
index 150e7fc..b75088a 100644
--- a/demos/bio/client-conf.c
+++ b/demos/bio/client-conf.c
@@ -53,7 +53,7 @@
             ERR_print_errors_fp(stderr);
             goto end;
         }
-        if (!strcmp(cnf->name, "Connect")) {
+        if (strcmp(cnf->name, "Connect") == 0) {
             connect_str = cnf->value;
         } else {
             fprintf(stderr, "Unknown configuration option %s\n", cnf->name);
diff --git a/demos/bio/server-arg.c b/demos/bio/server-arg.c
index 4f65227..b188f6a 100644
--- a/demos/bio/server-arg.c
+++ b/demos/bio/server-arg.c
@@ -52,7 +52,7 @@
         if (rv > 0)
             continue;
         /* Otherwise application specific argument processing */
-        if (!strcmp(*args, "-port")) {
+        if (strcmp(*args, "-port") == 0) {
             port = args[1];
             if (port == NULL) {
                 fprintf(stderr, "Missing -port argument\n");
diff --git a/demos/bio/server-conf.c b/demos/bio/server-conf.c
index 5355839..cc9fe8a 100644
--- a/demos/bio/server-conf.c
+++ b/demos/bio/server-conf.c
@@ -67,7 +67,7 @@
             ERR_print_errors_fp(stderr);
             goto err;
         }
-        if (!strcmp(cnf->name, "Port")) {
+        if (strcmp(cnf->name, "Port") == 0) {
             port = cnf->value;
         } else {
             fprintf(stderr, "Unknown configuration option %s\n", cnf->name);