std.cfg: Added some missing <strz/>-flags

cfg/std.cfg

@@ -475,7 +475,7 @@
     <arg nr="3" direction="in">
       <not-null/>
       <not-uninit/>
-      <valid>0:</valid>
+      <strz/>
     </arg>
     <arg nr="4" direction="in">
       <not-null/>
@@ -2000,6 +2000,7 @@
     <arg nr="1" direction="in">
       <not-null/>
       <not-uninit/>
+      <strz/>
     </arg>
     <arg nr="2" direction="inout">
       <not-null/>
@@ -5434,6 +5435,7 @@ The obsolete function 'gets' is called. With 'gets' you'll get a buffer overrun
     <arg nr="1" direction="in">
       <not-null/>
       <not-uninit/>
+      <strz/>
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
@@ -6189,6 +6191,7 @@ The obsolete function 'gets' is called. With 'gets' you'll get a buffer overrun
       <formatstr/>
       <not-null/>
       <not-uninit/>
+      <strz/>
     </arg>
   </function>
   <!-- int snprintf(char *s, size_t n, const char *format, ...); -->