Remove as much trailing whitespace as possible.

Change-Id: I873c1c6d00f447269bd841494459efccdd2c19c0

codecs/codec_adpcm.c

@@ -23,7 +23,7 @@
 /*! \file
  *
  * \brief codec_adpcm.c - translate between signed linear and Dialogic ADPCM
- * 
+ *
  * \ingroup codecs
  */
 
@@ -50,7 +50,7 @@
 #include "ex_adpcm.h"
 
 /*
- * Step size index shift table 
+ * Step size index shift table
  */
 
 static int indsft[8] = { -1, -1, -1, -1, 2, 4, 6, 8 };
@@ -167,7 +167,7 @@ static inline int adpcm(short csig, struct adpcm_state *state)
 	int step;
 	int encoded;
 
-	/* 
+	/*
 	 * Clip csig if too large or too small
 	 */
 	csig >>= 4;
@@ -208,7 +208,7 @@ static inline int adpcm(short csig, struct adpcm_state *state)
 
 	/* feedback to state */
 	decode(encoded, state);
-	
+
 	return encoded;
 }
 
@@ -259,7 +259,7 @@ static struct ast_frame *lintoadpcm_frameout(struct ast_trans_pvt *pvt)
 	struct ast_frame *f;
 	int i;
 	int samples = pvt->samples;	/* save original number */
-  
+
 	if (samples < 2)
 		return NULL;