Clarify documentation regarding +bundle linkage modifier

Author: In-line

src/doc/rustc/src/command-line-arguments.md

@@ -62,11 +62,15 @@ attribute or on the command-line, it will link a dynamic library if available,
 otherwise it will use a static library. If the kind is specified on the
 command-line, it will override the kind specified in a `link` attribute.
 
+Note that if you don't specify the `KIND`, the default linkage modifiers won't be applied.
+For instance, [`+bundle` linkage modifier][bundle-modifier] won't be used in conjunction with static library by default.
+
 The name used in a `link` attribute may be overridden using the form `-l
 ATTR_NAME:LINK_NAME` where `ATTR_NAME` is the name in the `link` attribute,
 and `LINK_NAME` is the name of the actual library that will be linked.
 
 [link-attribute]: ../reference/items/external-blocks.html#the-link-attribute
+[bundle-modifier]: #linking-modifiers-bundle
 
 ### Linking modifiers: `whole-archive`