Fix compiler warnings.

1 files changed, 6 insertions, 6 deletions

diff --git a/server/src/macrotool_fieldnames.cc b/server/src/macrotool_fieldnames.cc
index 1d92df8..3a6e651 100644
--- a/server/src/macrotool_fieldnames.cc
+++ b/server/src/macrotool_fieldnames.cc
@@ -160,7 +160,7 @@ static void list()
 void macrotool_fieldnames(std::vector<std::string> params)
 {
   if(params.size() < 1) {
-    printf(usage_str);
+    printf("%s", usage_str);
     return;
   }
 
@@ -169,7 +169,7 @@ void macrotool_fieldnames(std::vector<std::string> params)
   if(params[0] == "list") {
     if(params.size() != 1) {
       printf("The command 'list' does not need any parameters.\n");
-      printf(usage_str);
+      printf("%s", usage_str);
       return;
     }
     list();
@@ -179,7 +179,7 @@ void macrotool_fieldnames(std::vector<std::string> params)
   if(params[0] == "add") {
     if(params.size() != 3) {
       printf("The command 'add' needs 2 parameters.\n");
-      printf(usage_str);
+      printf("%s", usage_str);
       return;
     }
     add(params[1], params[2]);
@@ -189,7 +189,7 @@ void macrotool_fieldnames(std::vector<std::string> params)
   if(params[0] == "del") {
     if(params.size() != 2) {
       printf("The command 'del' needs 1 parameter.\n");
-      printf(usage_str);
+      printf("%s", usage_str);
       return;
     }
     del(params[1]);
@@ -197,11 +197,11 @@ void macrotool_fieldnames(std::vector<std::string> params)
   }
 
   if(params[0] == "help") {
-    printf(usage_str);
+    printf("%s", usage_str);
     return;
   }
 
   printf("Unknown command '%s'\n", params[0].c_str());
-  printf(usage_str);
+  printf("%s", usage_str);
   return;
 }