Strip whitespace from version string.

This fixes a build issue where the version string would contain a line
break.

This patch was cherry-picked from:
  https://github.com/kloetzl/libdivsufsort/commit/369151a72a69087cc2c3bc995a6592690ee11421

Bug: 24327902
Test: PROJECT_VERSION_FULL in config.h contains the closing ".

Change-Id: If613ac28e2fa94e9e5079023188720a7230809d8
diff --git a/VERSION.cmake b/VERSION.cmake
index 8ca8bf8..f7f7e43 100644
--- a/VERSION.cmake
+++ b/VERSION.cmake
@@ -14,6 +14,7 @@
     OUTPUT_VARIABLE GIT_DESCRIBE_TAGS ERROR_QUIET)
   if(GIT_DESCRIBE_TAGS)
     string(REGEX REPLACE "^v(.*)" "\\1" GIT_REVISION "${GIT_DESCRIBE_TAGS}")
+    string(STRIP "${GIT_REVISION}" GIT_REVISION)
     if(GIT_REVISION)
       set(PROJECT_VERSION_FULL "${GIT_REVISION}")
     endif(GIT_REVISION)