clean-up trailing whitespace (#453)

These changes have been mostly auto-generated with:

	find . -type f -print0 | xargs -0 perl -pi -e 's/ +$//'

Signed-off-by: Radostin Stoyanov <rstoyanov@fedoraproject.org>

utils/cheat_sheet_src/main.tex

@@ -7,7 +7,7 @@
 
 \documentclass{article}
 
-\usepackage{fontspec} 
+\usepackage{fontspec}
 \setmainfont{Utopia}
 \setsansfont{Free Helvetian}
 \setmonofont{Liberation Mono}
@@ -55,7 +55,7 @@
   basicstyle=\small\ttfamily, % Global Code Style
   captionpos=b, % Position of the Caption (t for top, b for bottom)
   extendedchars=true, % Allows 256 instead of 128 ASCII characters
-  tabsize=2, % number of spaces indented when discovering a tab 
+  tabsize=2, % number of spaces indented when discovering a tab
   columns=fixed, % make all characters equal width
   keepspaces=true, % does not ignore spaces to fit width, convert tabs to spaces
   showstringspaces=false, % lets spaces in strings appear as real spaces
@@ -88,7 +88,7 @@
     rectangle, rounded corners, inner sep=10pt, inner ysep=10pt]
 \tikzstyle{fancytitle} =[fill=black, text=white, font=\bfseries]
 \tikzstyle{mybox2} = [draw=black, fill=white, very thick, rectangle split,
-    rectangle split parts=2, 
+    rectangle split parts=2,
     rounded corners, inner sep=10pt, inner ysep=10pt]
 \tikzstyle{fancytitle2} =[fill=black, text=white, font=\bfseries]
 

utils/cheat_sheet_src/src/architecture.txt

@@ -3,7 +3,7 @@ extern void truncate(in bit<32> length);
 extern void resubmit<T>(in T x);
 extern void recirculate<T>(in T x);
 enum CloneType { I2E, E2I }
-extern void clone(in CloneType type, 
+extern void clone(in CloneType type,
                   in bit<32> session);
 
 // v1model pipeline elements
@@ -26,7 +26,7 @@ control Egress<H, M>(
   inout H hdr,
   inout M meta,
   inout standard_metadata_t std_meta
-);                      
+);
 control ComputeChecksum<H, M>(
   inout H hdr,
   inout M meta

utils/cheat_sheet_src/src/tables.txt

@@ -1,7 +1,7 @@
 table ipv4_lpm {
   key = {
     hdr.ipv4.dstAddr : lpm;
-    // standard match kinds: 
+    // standard match kinds:
     // exact, ternary, lpm
   }
   // actions that can be invoked

utils/p4apprunner.py

@@ -264,7 +264,7 @@ def run_stf(manifest):
 
 def run_custom(manifest):
     output_file = run_compile_bmv2(manifest)
-    python_path = 'PYTHONPATH=$PYTHONPATH:/scripts/mininet/'    
+    python_path = 'PYTHONPATH=$PYTHONPATH:/scripts/mininet/'
     script_args = []
     script_args.append('--behavioral-exe "%s"' % 'simple_switch')
     script_args.append('--json "%s"' % output_file)