common.h: Add #define ADMINCONTACT for easy customization

common.h

@@ -6,6 +6,9 @@
 
 /* Compile-time configuration area. */
 
+/* Contact of the network administrators. */
+#define ADMINCONTACT "<wizards@kam.mff.cuni.cz>"
+
 /* Default memory split policy. Memory is split between
  * user and computations by split_ratio, but so that neither
  * has reserved less than minfree (in case of too little memory,

compctl.c

@@ -92,7 +92,7 @@ help(FILE *f)
 {
 	fputs("compctl - Computations under control\n\n"
 #include "help-in-quotes"
-	"Contact <wizards@kam.mff.cuni.cz> with bug reports and comments.\n", f);
+	"Contact " ADMINCONTACT " with bug reports and comments.\n", f);
 }
 
 int