timewarrior: amend patch to greatly simplify

srcpkgs/timewarrior/patches/musl.patch

@@ -1,13 +1,11 @@
---- src/libshared/src/FS.cpp.old	2016-11-14 18:06:06.269639871 -0500
-+++ src/libshared/src/FS.cpp	2016-11-14 18:11:33.523550960 -0500
-@@ -905,8 +905,8 @@
-   free (buf);
-   return result;
- #else
--  char buf[PATH_MAX];
--  getcwd (buf, PATH_MAX - 1);
-+  char buf[FILENAME_MAX];
-+  getcwd (buf, FILENAME_MAX - 1);
-   return std::string (buf);
+--- src/libshared/src/FS.cpp.old	2016-11-14 22:25:30.714769358 -0500
++++ src/libshared/src/FS.cpp	2016-11-14 22:36:37.692633243 -0500
+@@ -41,7 +41,7 @@
+ #include <shared.h>
+ #include <format.h>
+ 
+-#if defined SOLARIS || defined NETBSD || defined FREEBSD
++#ifndef __GLIBC__
+ #include <limits.h>
  #endif
- }
+