Special-case paths that appear in libs by not prefixing them with -l.

tools/gn/command_desc.cc

Index: tools/gn/command_desc.cc
diff --git a/tools/gn/command_desc.cc b/tools/gn/command_desc.cc
index 3f2bbaf51fb15b23ad9d3545eb46d1a4164de7ee..d920f2cfd9b3602f580a1c30866e68652f4a2623 100644
--- a/tools/gn/command_desc.cc
+++ b/tools/gn/command_desc.cc
@@ -169,7 +169,7 @@ void PrintLibDirs(const Target* target, bool display_header) {
 }
 
 void PrintLibs(const Target* target, bool display_header) {
-  const OrderedSet<std::string>& libs = target->all_libs();
+  const OrderedSet<LibFile>& libs = target->all_libs();
   if (libs.empty())
     return;
 
@@ -177,7 +177,7 @@ void PrintLibs(const Target* target, bool display_header) {
     OutputString("\nlibs\n");
 
   for (size_t i = 0; i < libs.size(); i++)
-    OutputString("    " + libs[i] + "\n");
+    OutputString("    " + libs[i].value() + "\n");
 }
 
 void PrintPublic(const Target* target, bool display_header) {