Fix typo

Author: Caspar van Leeuwen

create_lmodsitepackage.py

@@ -130,7 +130,7 @@
 
         -- get the host_injections path, and add only the EESSI_CPU_FAMILY at the end
         local strip_suffix = os.getenv('EESSI_VERSION') .. "/software/" .. os.getenv('EESSI_OS_TYPE') .. "/"
-        strip_suffix = strip_suffix .. "os.getenv('EESSI_SOFTWARE_SUBDIR')
+        strip_suffix = strip_suffix .. os.getenv('EESSI_SOFTWARE_SUBDIR')
         local hostInjections = string.gsub(os.getenv('EESSI_SOFTWARE_PATH') or "", strip_suffix, os.getenv('EESSI_CPU_FAMILY'))
 
         -- build final path where the software should be installed