[frogr] Fix libgcrypt library name, lib prefix is implicit on Unix based platforms

[Mario Sanchez Prada <msanchez src gnome org>]

commit 830fe795318b3df683a4391434bd050401562626
Author: Ashish SHUKLA <ashish is lostca se>
Date:   Fri Apr 6 20:09:10 2018 +0530

    Fix libgcrypt library name, lib prefix is implicit on Unix based platforms

 meson.build |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/meson.build b/meson.build
index 4f450df..c80a6ae 100644
--- a/meson.build
+++ b/meson.build
@@ -42,7 +42,7 @@ json_glib = dependency('json-glib-1.0', version: '>=@0@'.format(json_glib_ver))
 gcrypt = dependency('libgcrypt', version: '>=@0@'.format(gcrypt_ver), required: false)
 if not gcrypt.found()
     message('gcrypt not found via pkg-config, using meson.find_library()...')
-    gcrypt = compiler.find_library('libgcrypt')
+    gcrypt = compiler.find_library('gcrypt')
 endif
 
 frogr_conf.set_quoted('LIBGCRYPT_MIN_VERSION', gcrypt_ver)