shell32: Conform to native in SHELL_ArgifyW for unquoted %1 in registry keys.

dlls/shell32/shlexec.c

@@ -156,32 +156,11 @@ static BOOL SHELL_ArgifyW(WCHAR* out, int len, const WCHAR* fmt, const WCHAR* lp
                     else
                         cmd = lpFile;
 
-                    /* Add double quotation marks unless we already have them
-                       (e.g.: "file://%1" %* for exefile) or unless the arg is already
-                       enclosed in double quotation marks */
-                    if ((res == out || *(fmt + 1) != '"') && *cmd != '"')
+                    used += strlenW(cmd);
+                    if (used < len)
                     {
-                        used++;
-                        if (used < len)
-                            *res++ = '"';
-                        used += strlenW(cmd);
-                        if (used < len)
-                        {
-                            strcpyW(res, cmd);
-                            res += strlenW(cmd);
-                        }
-                        used++;
-                        if (used < len)
-                            *res++ = '"';
-                    }
-                    else
-                    {
-                        used += strlenW(cmd);
-                        if (used < len)
-                        {
-                            strcpyW(res, cmd);
-                            res += strlenW(cmd);
-                        }
+                        strcpyW(res, cmd);
+                        res += strlenW(cmd);
                     }
                 }
                 found_p1 = TRUE;

dlls/shell32/tests/shlexec.c

@@ -1064,7 +1064,7 @@ static dde_tests_t dde_tests[] =
 
     /* Test unquoted %1 in command and ddeexec
      * (test filename has space) */
-    {"%1", "[open(%1)]", "shlexec", "dde", NULL, 2, "[open(%s)]", 0xa, 33},
+    {"%1", "[open(%1)]", "shlexec", "dde", NULL, 2, "[open(%s)]", 0x0, 33},
 
     /* Test ifexec precedence over ddeexec */
     {"", "[open(\"%1\")]", "shlexec", "dde", "[ifexec(\"%1\")]", FALSE, "[ifexec(\"%s\")]", 0x0, 33},