Remove backslash alignment attempts

Right-aligning backslashes when defining macros or using complex
commands in Makefiles looks cute, but as soon as any changes is
required to the code you end up with either distractingly broken
alignment or unnecessarily big diffs where most of the changes
are just pushing all backslashes a few characters to one side.

Generated using

  $ git grep -El '[[:blank:]][[:blank:]]\\$' | \
    grep -E '*\.([chx]|am|mk)$$' | \
    while read f; do \
      sed -Ei 's/[[:blank:]]*[[:blank:]]\\$/ \\/g' "$f"; \
    done

Signed-off-by: Andrea Bolognani <abologna@redhat.com>

tools/virt-host-validate-bhyve.c

@@ -28,16 +28,16 @@
 #include "virt-host-validate-bhyve.h"
 #include "virt-host-validate-common.h"
 
-#define MODULE_STATUS(mod, err_msg, err_code)                  \
-    virHostMsgCheck("BHYVE", _("for %s module"), #mod);        \
-    if (mod ## _loaded) {                                      \
-        virHostMsgPass();                                      \
-    } else {                                                   \
-        virHostMsgFail(err_code,                               \
+#define MODULE_STATUS(mod, err_msg, err_code) \
+    virHostMsgCheck("BHYVE", _("for %s module"), #mod); \
+    if (mod ## _loaded) { \
+        virHostMsgPass(); \
+    } else { \
+        virHostMsgFail(err_code, \
                        _("%s module is not loaded, " err_msg), \
-                        #mod);                                 \
-        ret = -1;                                              \
-    }                                                          \
+                        #mod); \
+        ret = -1; \
+    } \
 
 #define MODULE_STATUS_FAIL(mod, err_msg) \
     MODULE_STATUS(mod, err_msg, VIR_HOST_VALIDATE_FAIL)