doc: Fix whitespace errs in .md files, bitcoin.conf, Info.plist.in, and find_bdb48.m4

depends/packages.md

@@ -32,15 +32,15 @@ These variables are optional:
 
     $(package)_build_subdir:
     cd to this dir before running configure/build/stage commands.
-    
+
     $(package)_download_file:
     The file-name of the upstream source if it differs from how it should be
     stored locally. This can be used to avoid storing file-names with strange
     characters.
-    
+
     $(package)_dependencies:
     Names of any other packages that this one depends on.
-    
+
     $(package)_patches:
     Filenames of any patches needed to build the package
 
@@ -134,7 +134,7 @@ the user. Other variables may be defined as needed.
     Stage the build results. If undefined, does nothing.
 
   The following variables are available for each recipe:
-    
+
     $(1)_staging_dir: package's destination sysroot path
     $(1)_staging_prefix_dir: prefix path inside of the package's staging dir
     $(1)_extract_dir: path to the package's extracted sources