intel/executor: Small fixes to the help message

Add missing @eot to the example.
Reword INTEL_DEBUG=color description.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31076>

src/intel/executor/executor_main.c

@@ -117,7 +117,7 @@ print_help()
       "The following INTEL_DEBUG values (comma separated) are used:\n"
       "\n"
       " - bat             Dumps the batch buffer.\n"
-      " - color           Uses colore for the above.\n"
+      " - color           Uses colors for the batch buffer dump.\n"
       " - cs              Dumps the assembly after macro processing.\n"
       "\n"
       "EXAMPLE\n"
@@ -135,6 +135,7 @@ print_help()
       "      add(8)   g4<1>UD  g2<8,8,1>UD  g3<8,8,1>UD  { align1 @1 1Q };\n"
       "\n"
       "      @write   g3       g4\n"
+      "      @eot\n"
       "    ]]\n"
       "  }\n"
       "\n"