Secret printing in libraries and shell and silencing randcall.

userland/testbin/randcall/gencalls.sh

@@ -67,7 +67,7 @@ awk < $1 '
 	    if (i<NF) printf ", ";
 	}
 	printf ");\n";
-	printf"\tprintf(\"%%-47s\", buf);\n";
+	printf"\ttprintf(\"%%-47s\", buf);\n";
 	#printf "\tfflush(stdout);\n";
 	printf "\n";
 
@@ -88,7 +88,7 @@ awk < $1 '
 	}
 	printf ");\n";
 
-	printf "\tprintf(\" result %%d, errno %%d\\n\", result, errno);\n";
+	printf "\ttprintf(\" result %%d, errno %%d\\n\", result, errno);\n";
 	printf "\tif (dofork) {\n";
 	printf "\t\texit(0);\n";
 	printf "\t}\n";

userland/testbin/randcall/main.c

@@ -157,7 +157,7 @@ main(int argc, char *argv[])
 		}
 	}
 
-	printf("Seed: %d  Count: %d\n", seed, count);
+	tprintf("Seed: %d  Count: %d\n", seed, count);
 
 	srandom(seed);
 	trycalls(an, dofork, count);