style fix: remove trailing spaces

src/core/ngx_resolver.c

diff --git a/src/core/ngx_resolver.c b/src/core/ngx_resolver.c
index 1914aa7..045ded7 100644
--- a/src/core/ngx_resolver.c
+++ b/src/core/ngx_resolver.c
@@ -748,7 +748,7 @@
     /* lock addr mutex */
 
     atimer = ngx_resolver_resend(r, &r->addr_rbtree, &r->addr_resend_queue);
-       
+
     /* unlock addr mutex */
 
     if (ntimer == 0) {

src/http/modules/ngx_http_proxy_module.c

diff --git a/src/http/modules/ngx_http_proxy_module.c b/src/http/modules/ngx_http_proxy_module.c
index 977de46..6532f28 100644
--- a/src/http/modules/ngx_http_proxy_module.c
+++ b/src/http/modules/ngx_http_proxy_module.c
@@ -2323,7 +2323,7 @@
         sc.variables = n;
         sc.complete_lengths = 1;
         sc.complete_values = 1;
-        
+
         if (ngx_http_script_compile(&sc) != NGX_OK) {
             return NGX_CONF_ERROR;
         }

src/os/win32/ngx_socket.h

diff --git a/src/os/win32/ngx_socket.h b/src/os/win32/ngx_socket.h
index 1027a81..57126e9 100644
--- a/src/os/win32/ngx_socket.h
+++ b/src/os/win32/ngx_socket.h
@@ -121,12 +121,12 @@
 #pragma warning(disable:4201) /* Nonstandard extension, nameless struct/union */
 #endif
 
-typedef struct _TRANSMIT_PACKETS_ELEMENT { 
-    ULONG dwElFlags; 
+typedef struct _TRANSMIT_PACKETS_ELEMENT {
+    ULONG dwElFlags;
 #define TP_ELEMENT_MEMORY   1
 #define TP_ELEMENT_FILE     2
 #define TP_ELEMENT_EOP      4
-    ULONG cLength; 
+    ULONG cLength;
     union {
         struct {
             LARGE_INTEGER nFileOffset;
@@ -144,12 +144,12 @@
 #endif
 
 typedef BOOL (PASCAL FAR * LPFN_TRANSMITPACKETS) (
-    SOCKET hSocket,                             
-    TRANSMIT_PACKETS_ELEMENT *lpPacketArray,                               
-    DWORD nElementCount,                
-    DWORD nSendSize,                
-    LPOVERLAPPED lpOverlapped,                  
-    DWORD dwFlags                               
+    SOCKET hSocket,
+    TRANSMIT_PACKETS_ELEMENT *lpPacketArray,
+    DWORD nElementCount,
+    DWORD nSendSize,
+    LPOVERLAPPED lpOverlapped,
+    DWORD dwFlags
     );
 
 #define WSAID_TRANSMITPACKETS                                                \