Keyboard.c: use "\0" instead of "0"

nx-X11/programs/Xserver/hw/nxagent/Args.c

@@ -1496,7 +1496,7 @@ static void nxagentParseOptionString(char *string)
 
   if (delimiter)
   {
-    *delimiter = 0;
+    *delimiter = '\0';
   }
   else
   {
@@ -1509,7 +1509,7 @@ static void nxagentParseOptionString(char *string)
 
     if (delimiter)
     {
-      *delimiter = 0;
+      *delimiter = '\0';
       value = delimiter + 1;
     }
     else
@@ -1650,7 +1650,7 @@ void nxagentProcessOptionsFile(char * filename)
 
   for (offset = 0; (offset < sizeOfFile) && (data[offset] != '\n'); offset++);
 
-  data[offset] = 0;
+  data[offset] = '\0';
 
   nxagentParseOptionString(data);
 

nx-X11/programs/Xserver/hw/nxagent/Keyboard.c

@@ -584,9 +584,9 @@ XkbError:
             (strcmp(nxagentKeyboard, "query") != 0) &&
             (strcmp(nxagentKeyboard, "clone") != 0))
         {
-          for (i = 0; nxagentKeyboard[i] != '/' && nxagentKeyboard[i] != 0; i++);
+          for (i = 0; nxagentKeyboard[i] != '/' && nxagentKeyboard[i] != '\0'; i++);
 
-          if (nxagentKeyboard[i] == 0 || nxagentKeyboard[i + 1] == 0 || i == 0)
+          if (nxagentKeyboard[i] == '\0' || nxagentKeyboard[i + 1] == '\0' || i == 0)
           {
             ErrorF("Warning: Wrong keyboard type: %s.\n", nxagentKeyboard);
             goto XkbError;