Fixing Bugs 2246 & 2251

parse error message for bad orders:
https://bugs.eressea.de/view.php?id=2251
report when TEMP-Units cannot recuit:
https://bugs.eressea.de/view.php?id=2246

res/core/messages.xml

@@ -1,5 +1,13 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <messages>
+  <message name="parse_error" section="errors">
+    <type>
+      <arg name="unit" type="unit"/>
+      <arg name="command" type="string"/>
+    </type>
+    <text locale="de">"$unit($unit): '$command' - Dieser Befehl ist unbekannt."</text>
+    <text locale="en">"$unit($unit): '$command' - Parse error, unknown command."</text>
+  </message>
   <message name="reduced_production">
     <text locale="de">Die Region ist verwüstet, der Boden karg.</text>
     <text locale="en">The region is ravaged, the ground infertile.</text>

src/economy.c

@@ -341,8 +341,8 @@ static int do_recruiting(recruitment * recruits, int available)
                 /* unit is empty, dead, and cannot recruit */
                 number = 0;
             }
-            if (number > 0) {
             add_recruits(u, number, req->qty);
+            if (number > 0) {
                 dec = (int)(number * multi);
                 if ((rc->ec_flags & ECF_REC_ETHEREAL) == 0) {
                     recruited += dec;

src/kernel/order.c

@@ -285,7 +285,7 @@ static order *create_order_i(keyword_t kwd, const char *sptr, bool persistent,
     order *ord = NULL;
     int lindex;
 
-    if ((int)kwd > 0 && keyword_disabled(kwd)) {
+    if (kwd == NOKEYWORD || keyword_disabled(kwd)) {
         log_error("trying to create an order for disabled keyword %s.", keyword(kwd));
         return NULL;
     }
@@ -407,9 +407,9 @@ order *parse_order(const char *s, const struct locale * lang)
         if (kwd != NOKEYWORD) {
             while (isxspace(*(unsigned char *)sptr)) ++sptr;
             s = sptr;
-        }
             return create_order_i(kwd, s, persistent, lang);
         }
+    }
     return NULL;
 }
 

src/kernel/save.c

@@ -206,12 +206,14 @@ static unit *unitorders(FILE * F, int enc, struct faction *f)
                 if (*ordp) {
                     ordp = &(*ordp)->next;
                 }
+                else {
+                    ADDMSG(&f->msgs, msg_message("parse_error", "unit command", u, s));
+                }
             }
         }
 
     }
     else {
-        /* cmistake(?, buf, 160, MSG_EVENT); */
         return NULL;
     }
     return u;